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test/diagrams/graph_hard/diagrams_1.dot

@@ -0,0 +1,61 @@
+digraph {
+	rankdir=LR
+	N0 [label="AML Screening" color="#90A4AE" fillcolor="#ECEFF1" shape=predefinedprocess style=filled]
+	N1 [label="Financial Reporting" color="#90A4AE" fillcolor="#ECEFF1" shape=inputoutput style=filled]
+	N2 [label="KYC Validation" color="#90A4AE" fillcolor="#ECEFF1" shape=rect style=filled]
+	N3 [label="Underwriting" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N4 [label="Transaction Logging" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N5 [label="Payment Gateway Integration" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N6 [label="Investment Planning" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N7 [label="Financial Advisory" color="#90A4AE" fillcolor="#ECEFF1" shape=rect style=filled]
+	N8 [label="Securities Trading" color="#90A4AE" fillcolor="#ECEFF1" shape=action style=filled]
+	N9 [label="Treasury Management" color="#AB47BC" fillcolor="#F3E5F5" shape=rect style=filled]
+	N10 [label="IPO Launch" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N11 [label="Transaction Audit" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N12 [label="Credit Card Application" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	S0 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Wealth Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Wealth Management"
+		nest0_0 [label="Budgeting Analysis" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+		nest0_1 [label="Approval Decision" color="#90A4AE" fillcolor="#ECEFF1" shape=document style=filled]
+	}
+	subgraph cluster_Debt Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Debt Collection"
+		nest1_0 [label="Credit Scoring" color="#90A4AE" fillcolor="#ECEFF1" shape=document style=filled]
+		nest1_1 [label="Cryptocurrency Exchange" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+	}
+	N0 -> N1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#E57373" penwidth=1.5 style=solid label="reports" dir=forward]
+	nest0_0 -> nest0_1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#E57373" penwidth=1.5 style=solid label="screens" dir=forward]
+	nest1_1 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S0 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#AB47BC" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N5 -> M1 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N10 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_1.txt

@@ -0,0 +1,25 @@
+<AML Screening, analyzes, IPO Launch>
+<AML Screening, connectedTo, Financial Reporting>
+<Approval Decision, connectedTo, Treasury Management>
+<Budgeting Analysis, connectedTo, Approval Decision>
+<Credit Scoring, connectedTo, Cryptocurrency Exchange>
+<Cryptocurrency Exchange, connectedTo, Investment Planning>
+<Financial Advisory, connectedTo, Credit Card Application>
+<Financial Advisory, connectedTo, Securities Trading>
+<Financial Advisory, connectedTo, Treasury Management>
+<Financial Reporting, connectedTo, Credit Card Application>
+<Financial Reporting, connectedTo, Financial Advisory>
+<Financial Reporting, connectedTo, KYC Validation>
+<IPO Launch, connectedTo, Transaction Audit>
+<Investment Planning, connectedTo, Financial Advisory>
+<Investment Planning, screens, Credit Scoring>
+<KYC Validation, connectedTo, IPO Launch>
+<KYC Validation, connectedTo, Underwriting>
+<Payment Gateway Integration, connectedTo, IPO Launch>
+<Payment Gateway Integration, connectedTo, Investment Planning>
+<Securities Trading, connectedTo, Treasury Management>
+<Transaction Audit, reports, Credit Card Application>
+<Transaction Logging, connectedTo, Payment Gateway Integration>
+<Treasury Management, connectedTo, Budgeting Analysis>
+<Treasury Management, connectedTo, IPO Launch>
+<Underwriting, connectedTo, Transaction Logging>

test/diagrams/graph_hard/diagrams_10.dot

@@ -0,0 +1,73 @@
+digraph {
+	rankdir=TB
+	N0 [label="Graduation Approval" color="#BDAFA8" fillcolor="#E4E0DF" shape=database style=filled]
+	N1 [label="Research Grant Application" color="#81C784" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	N2 [label="Special Education Support" color="#BDAFA8" fillcolor="#E4E0DF" shape=rectangle style=filled]
+	N3 [label="Alumni Network Management" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N4 [label="Document Verification" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	N5 [label="Scholarship Evaluation" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N6 [label="Peer Tutoring" color="#BDAFA8" fillcolor="#E4E0DF" shape=parallelogram style=filled]
+	N7 [label="Field Trip Coordination" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N8 [label="Internship Coordination" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N9 [label="Course Selection" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N10 [label="Club Registration" color="#BDAFA8" fillcolor="#E4E0DF" shape=multipledocuments style=filled]
+	N11 [label="Online Learning Platform Management" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N12 [label="Transcript Issuance" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	S0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Advisory Committee Meeting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Advisory Committee Meeting"
+		nest0_0 [label="Parent_Teacher Conference" color="#FFDA4E" fillcolor="#FFE88D" shape=preparation style=filled]
+		nest0_1 [label="School Accreditation" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+		nest0_2 [label="Certificate Issuance" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+		nest0_3 [label="Extracurricular Activity" color="#FFDA4E" fillcolor="#FFE88D" shape=preparation style=filled]
+	}
+	subgraph cluster_Disciplinary Action {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Disciplinary Action"
+		nest1_0 [label="Thesis Submission" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+		nest1_1 [label="Exam Conduct" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	}
+	N0 -> N1 [color="#FFDA4E" penwidth=1.5 style=solid label="updates" dir=forward]
+	N1 -> N2 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#BDAFA8" penwidth=1.5 style=dashed label="licenses" dir=forward]
+	nest0_3 -> N4 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N10 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#FFDA4E" penwidth=1.5 style=solid label="administers" dir=forward]
+	N3 -> M1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	M1 -> N11 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N5 -> M2 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> M2 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	M2 -> N10 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_100.dot

@@ -0,0 +1,71 @@
+digraph {
+	rankdir=RL
+	N0 [label="Freelancer Engagement" color="#82DAFF" fillcolor="#C8EDFF" shape=parallelogram style=filled]
+	N1 [label="Candidate Experience Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N2 [label="Recruiter Training" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N3 [label="Internal Mobility" color="#AB47BC" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N4 [label="Candidate Relationship Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N5 [label="Video Interviewing" color="#82DAFF" fillcolor="#C8EDFF" shape=vnode_shape style=filled]
+	N6 [label="Contingent Workforce Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=predefinedprocess style=filled]
+	N7 [label="Candidate Screening" color="#AB47BC" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N8 [label="Executive Search" color="#AB47BC" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+	N9 [label="Competency_Based Interviewing" color="#AB47BC" fillcolor="#F3E5F5" shape=action style=filled]
+	N10 [label="Candidate Tracking" color="#AB47BC" fillcolor="#F3E5F5" shape=database style=filled]
+	N11 [label="Talent Pipeline Building" color="#82DAFF" fillcolor="#C8EDFF" shape=database style=filled]
+	S0 [label="" color="#82DAFF" fillcolor="#C8EDFF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Interview Panel Coordination {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Interview Panel Coordination"
+		nest0_0 [label="Background Check" color="#82DAFF" fillcolor="#C8EDFF" shape=rectangle style=filled]
+		nest0_1 [label="Interview Conducting" color="#82DAFF" fillcolor="#C8EDFF" shape=hexagon style=filled]
+		nest0_2 [label="Negotiation" color="#82DAFF" fillcolor="#C8EDFF" shape=document style=filled]
+		nest0_3 [label="Job Description Creation" color="#AB47BC" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Temporary Staffing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Temporary Staffing"
+		nest1_0 [label="Global Recruitment Strategy" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+		nest1_1 [label="Job Fair Organization" color="#82DAFF" fillcolor="#C8EDFF" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N11 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N3 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid label="screens" dir=forward]
+	N3 -> S1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FFEB3B" penwidth=1.5 style=solid label="builds" dir=forward]
+	N3 -> M0 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid label="onboards" dir=forward]
+	M0 -> N5 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> M2 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_100.txt

@@ -0,0 +1,31 @@
+<Background Check, connectedTo, Interview Conducting>
+<Candidate Experience Management, builds, Video Interviewing>
+<Candidate Experience Management, connectedTo, Candidate Tracking>
+<Candidate Experience Management, connectedTo, Global Recruitment Strategy>
+<Candidate Experience Management, connectedTo, Recruiter Training>
+<Candidate Relationship Management, connectedTo, Video Interviewing>
+<Candidate Screening, connectedTo, Executive Search>
+<Candidate Tracking, connectedTo, Talent Pipeline Building>
+<Competency_Based Interviewing, connectedTo, Candidate Tracking>
+<Contingent Workforce Management, connectedTo, Background Check>
+<Contingent Workforce Management, connectedTo, Candidate Screening>
+<Contingent Workforce Management, connectedTo, Candidate Tracking>
+<Executive Search, connectedTo, Competency_Based Interviewing>
+<Freelancer Engagement, connectedTo, Candidate Experience Management>
+<Freelancer Engagement, connectedTo, Video Interviewing>
+<Global Recruitment Strategy, connectedTo, Job Fair Organization>
+<Internal Mobility, connectedTo, Candidate Relationship Management>
+<Internal Mobility, connectedTo, Candidate Tracking>
+<Internal Mobility, connectedTo, Competency_Based Interviewing>
+<Internal Mobility, connectedTo, Contingent Workforce Management>
+<Internal Mobility, connectedTo, Executive Search>
+<Internal Mobility, connectedTo, Talent Pipeline Building>
+<Internal Mobility, connectedTo, Video Interviewing>
+<Internal Mobility, screens, Competency_Based Interviewing>
+<Interview Conducting, connectedTo, Negotiation>
+<Job Description Creation, connectedTo, Talent Pipeline Building>
+<Job Fair Organization, connectedTo, Internal Mobility>
+<Negotiation, connectedTo, Job Description Creation>
+<Recruiter Training, connectedTo, Internal Mobility>
+<Recruiter Training, onboards, Video Interviewing>
+<Video Interviewing, connectedTo, Contingent Workforce Management>

test/diagrams/graph_hard/diagrams_101.dot

@@ -0,0 +1,62 @@
+digraph {
+	rankdir=BT
+	N0 [label="Recruiter Training" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N1 [label="Social Recruiting" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+	N2 [label="Job Fair Organization" color="#D2D2D2" fillcolor="#F0F0F0" shape=predefinedprocess style=filled]
+	N3 [label="Competency_Based Interviewing" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N4 [label="Candidate Assessment Design" color="#3F51B5" fillcolor="#C5CAE9" shape=inputoutput style=filled]
+	N5 [label="Psychometric Testing" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+	N6 [label="Recruitment Analytics" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N7 [label="Campus Recruitment" color="#D2D2D2" fillcolor="#F0F0F0" shape=predefinedprocess style=filled]
+	S0 [label="" color="#D2D2D2" fillcolor="#F0F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#D2D2D2" fillcolor="#F0F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Contingent Workforce Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Contingent Workforce Management"
+		nest0_0 [label="Interview Conducting" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+		nest0_1 [label="Job Description Creation" color="#D2D2D2" fillcolor="#F0F0F0" shape=rectangle style=filled]
+		nest0_2 [label="Executive Search" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+		nest0_3 [label="Temporary Staffing" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+	}
+	subgraph cluster_Onboarding Handoff {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Onboarding Handoff"
+		nest1_0 [label="Recruitment Metrics Reporting" color="#D2D2D2" fillcolor="#F0F0F0" shape=document style=filled]
+		nest1_1 [label="Passive Candidate Engagement" color="#3F51B5" fillcolor="#C5CAE9" shape=preparation style=filled]
+		nest1_2 [label="Recruitment Marketing" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#D2D2D2" penwidth=1.5 style=solid label="assesses" dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N7 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest1_0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N2 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=solid label="personalizes" dir=forward]
+	S1 -> N6 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N3 -> S2 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_101.txt

@@ -0,0 +1,25 @@
+<Candidate Assessment Design, connectedTo, Campus Recruitment>
+<Candidate Assessment Design, connectedTo, Psychometric Testing>
+<Candidate Assessment Design, connectedTo, Recruitment Analytics>
+<Competency_Based Interviewing, connectedTo, Campus Recruitment>
+<Competency_Based Interviewing, connectedTo, Candidate Assessment Design>
+<Competency_Based Interviewing, connectedTo, Psychometric Testing>
+<Competency_Based Interviewing, connectedTo, Recruitment Analytics>
+<Competency_Based Interviewing, connectedTo, Recruitment Metrics Reporting>
+<Executive Search, connectedTo, Temporary Staffing>
+<Interview Conducting, connectedTo, Job Description Creation>
+<Job Description Creation, connectedTo, Executive Search>
+<Job Fair Organization, assesses, Competency_Based Interviewing>
+<Job Fair Organization, connectedTo, Psychometric Testing>
+<Passive Candidate Engagement, connectedTo, Recruitment Marketing>
+<Psychometric Testing, connectedTo, Interview Conducting>
+<Psychometric Testing, connectedTo, Recruitment Analytics>
+<Recruiter Training, connectedTo, Social Recruiting>
+<Recruitment Analytics, connectedTo, Campus Recruitment>
+<Recruitment Marketing, connectedTo, Job Fair Organization>
+<Recruitment Metrics Reporting, connectedTo, Passive Candidate Engagement>
+<Social Recruiting, connectedTo, Candidate Assessment Design>
+<Social Recruiting, connectedTo, Job Fair Organization>
+<Social Recruiting, connectedTo, Recruitment Analytics>
+<Social Recruiting, personalizes, Psychometric Testing>
+<Temporary Staffing, connectedTo, Campus Recruitment>

test/diagrams/graph_hard/diagrams_102.dot

@@ -0,0 +1,71 @@
+digraph {
+	rankdir=BT
+	N0 [label="Candidate Feedback Collection" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N1 [label="Candidate Relationship Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=multipledocuments style=filled]
+	N2 [label="Campus Recruitment" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N3 [label="Employee Referral Program" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N4 [label="Negotiation" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N5 [label="Contingent Workforce Management" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N6 [label="Internal Mobility" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N7 [label="Background Check" color="#4CAF50" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	N8 [label="Talent Pipeline Building" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	N9 [label="Reference Checking" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+	N10 [label="Candidate Experience Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=predefinedprocess style=filled]
+	N11 [label="Compliance in Hiring" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N12 [label="Candidate Assessment Design" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N13 [label="Recruitment Analytics" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Video Interviewing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Video Interviewing"
+		nest0_0 [label="Temporary Staffing" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+		nest0_1 [label="Candidate Screening" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+		nest0_2 [label="Social Recruiting" color="#EAEFA5" fillcolor="#FDFCEB" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Employer Branding {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Employer Branding"
+		nest1_0 [label="Psychometric Testing" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+		nest1_1 [label="Competency_Based Interviewing" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+		nest1_2 [label="AI in Recruitment" color="#4CAF50" fillcolor="#C8E6C9" shape=diamond style=filled]
+		nest1_3 [label="Diversity Sourcing" color="#388E3C" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N9 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#4CAF50" penwidth=1.5 style=dashed label="sources" dir=forward]
+	N5 -> nest1_0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N4 -> S1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	M0 -> N13 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_102.txt

@@ -0,0 +1,30 @@
+<AI in Recruitment, sources, Diversity Sourcing>
+<Background Check, connectedTo, Talent Pipeline Building>
+<Background Check, connectedTo, Temporary Staffing>
+<Campus Recruitment, connectedTo, Employee Referral Program>
+<Candidate Assessment Design, connectedTo, Recruitment Analytics>
+<Candidate Experience Management, connectedTo, Compliance in Hiring>
+<Candidate Experience Management, connectedTo, Recruitment Analytics>
+<Candidate Feedback Collection, connectedTo, Background Check>
+<Candidate Feedback Collection, connectedTo, Campus Recruitment>
+<Candidate Feedback Collection, connectedTo, Candidate Relationship Management>
+<Candidate Feedback Collection, connectedTo, Recruitment Analytics>
+<Candidate Relationship Management, connectedTo, Campus Recruitment>
+<Candidate Screening, connectedTo, Social Recruiting>
+<Competency_Based Interviewing, connectedTo, AI in Recruitment>
+<Compliance in Hiring, connectedTo, Candidate Assessment Design>
+<Contingent Workforce Management, connectedTo, Internal Mobility>
+<Contingent Workforce Management, connectedTo, Psychometric Testing>
+<Diversity Sourcing, connectedTo, Campus Recruitment>
+<Employee Referral Program, connectedTo, Negotiation>
+<Employee Referral Program, connectedTo, Recruitment Analytics>
+<Internal Mobility, connectedTo, Background Check>
+<Negotiation, connectedTo, Candidate Assessment Design>
+<Negotiation, connectedTo, Contingent Workforce Management>
+<Negotiation, connectedTo, Internal Mobility>
+<Negotiation, connectedTo, Recruitment Analytics>
+<Psychometric Testing, connectedTo, Competency_Based Interviewing>
+<Reference Checking, connectedTo, Candidate Experience Management>
+<Social Recruiting, connectedTo, Reference Checking>
+<Talent Pipeline Building, connectedTo, Reference Checking>
+<Temporary Staffing, connectedTo, Candidate Screening>

test/diagrams/graph_hard/diagrams_103.txt

@@ -0,0 +1,26 @@
+<Account Management, connectedTo, Customer Journey Mapping>
+<Account Management, connectedTo, Customer Onboarding Support>
+<Account Management, connectedTo, FAQ Management>
+<Account Management, records, Service Blueprinting>
+<Customer Journey Mapping, connectedTo, Email Support>
+<Customer Journey Mapping, connectedTo, Service Blueprinting>
+<Customer Satisfaction Survey, connectedTo, Customer Onboarding Support>
+<Customer Satisfaction Survey, connectedTo, First Contact Resolution Optimization>
+<Customer Success Management, connectedTo, Product Information Provision>
+<Email Support, connectedTo, Up_selling Opportunities>
+<FAQ Management, connectedTo, Customer Satisfaction Survey>
+<FAQ Management, connectedTo, Service Blueprinting>
+<First Contact Resolution Optimization, connectedTo, Customer Success Management>
+<Inquiry Handling, connectedTo, Customer Journey Mapping>
+<Inquiry Handling, connectedTo, Knowledge Base Creation>
+<Issue Escalation, connectedTo, Customer Journey Mapping>
+<Issue Escalation, connectedTo, Inquiry Handling>
+<Knowledge Base Creation, connectedTo, Account Management>
+<Knowledge Base Creation, connectedTo, Customer Journey Mapping>
+<Order Status Check, connectedTo, Customer Journey Mapping>
+<Order Status Check, connectedTo, Issue Escalation>
+<Product Information Provision, connectedTo, Knowledge Base Creation>
+<Self_Service Portal Management, connectedTo, FAQ Management>
+<Sentiment Analysis, connectedTo, Self_Service Portal Management>
+<Service Blueprinting, connectedTo, FAQ Management>
+<Up_selling Opportunities, connectedTo, Sentiment Analysis>

test/diagrams/graph_hard/diagrams_104.dot

@@ -0,0 +1,86 @@
+digraph {
+	rankdir=TB
+	N0 [label="Accessibility Support" color="#CD8FF2" fillcolor="#ECCFF5" shape=inputoutput style=filled]
+	N1 [label="Customer Journey Mapping" color="#FFC085" fillcolor="#FFDAB9" shape=document style=filled]
+	N2 [label="Sentiment Analysis" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N3 [label="Self_Service Portal Management" color="#BDAFA8" fillcolor="#E4E0DF" shape=multipledocuments style=filled]
+	N4 [label="Issue Escalation" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N5 [label="Email Support" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N6 [label="Order Status Check" color="#FFC085" fillcolor="#FFDAB9" shape=vnode_shape style=filled]
+	N7 [label="First Contact Resolution Optimization" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N8 [label="Social Media Response" color="#BDAFA8" fillcolor="#E4E0DF" shape=preparation style=filled]
+	N9 [label="Post_Service Follow_up" color="#FFC085" fillcolor="#FFDAB9" shape=hexagon style=filled]
+	N10 [label="Service Level Agreement Monitoring" color="#FFC085" fillcolor="#FFDAB9" shape=preparation style=filled]
+	N11 [label="Personalized Assistance" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N12 [label="Virtual Assistant Interaction" color="#CD8FF2" fillcolor="#ECCFF5" shape=multipledocuments style=filled]
+	S0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Refund Processing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Refund Processing"
+		nest0_0 [label="Customer Loyalty Program Support" color="#BDAFA8" fillcolor="#E4E0DF" shape=rectangle style=filled]
+		nest0_1 [label="Complaint Resolution" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+		nest0_2 [label="Cross_selling Opportunities" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	}
+	subgraph cluster_Account Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Account Management"
+		nest1_0 [label="Service Recovery" color="#BDAFA8" fillcolor="#E4E0DF" shape=multipledocuments style=filled]
+		nest1_1 [label="Live Chat Support" color="#BDAFA8" fillcolor="#E4E0DF" shape=multipledocuments style=filled]
+		nest1_2 [label="FAQ Management" color="#BDAFA8" fillcolor="#E4E0DF" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N2 -> N3 [color="#CD8FF2" penwidth=1.5 style=solid label="complies" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC085" penwidth=1.5 style=solid label="empathizes" dir=forward]
+	N5 -> N6 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#CD8FF2" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFC085" penwidth=1.5 style=dashed label="consults" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest0_0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N10 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest1_0 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N11 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N6 -> S2 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N10 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid label="personals" dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N6 -> M2 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N12 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_104.txt

@@ -0,0 +1,40 @@
+<Accessibility Support, connectedTo, Customer Journey Mapping>
+<Accessibility Support, connectedTo, Service Level Agreement Monitoring>
+<Accessibility Support, personals, Post_Service Follow_up>
+<Complaint Resolution, connectedTo, Cross_selling Opportunities>
+<Cross_selling Opportunities, connectedTo, Service Level Agreement Monitoring>
+<Customer Journey Mapping, automates, Sentiment Analysis>
+<Customer Loyalty Program Support, consults, Complaint Resolution>
+<Email Support, connectedTo, Order Status Check>
+<Email Support, connectedTo, Post_Service Follow_up>
+<Email Support, connectedTo, Service Level Agreement Monitoring>
+<FAQ Management, connectedTo, Personalized Assistance>
+<First Contact Resolution Optimization, connectedTo, Service Level Agreement Monitoring>
+<First Contact Resolution Optimization, connectedTo, Social Media Response>
+<First Contact Resolution Optimization, connectedTo, Virtual Assistant Interaction>
+<Issue Escalation, connectedTo, Post_Service Follow_up>
+<Issue Escalation, connectedTo, Service Level Agreement Monitoring>
+<Issue Escalation, connectedTo, Virtual Assistant Interaction>
+<Issue Escalation, empathizes, Email Support>
+<Live Chat Support, connectedTo, FAQ Management>
+<Order Status Check, connectedTo, First Contact Resolution Optimization>
+<Order Status Check, connectedTo, Personalized Assistance>
+<Order Status Check, connectedTo, Post_Service Follow_up>
+<Order Status Check, connectedTo, Service Level Agreement Monitoring>
+<Order Status Check, connectedTo, Social Media Response>
+<Order Status Check, connectedTo, Virtual Assistant Interaction>
+<Personalized Assistance, optimizes, Virtual Assistant Interaction>
+<Post_Service Follow_up, connectedTo, Service Level Agreement Monitoring>
+<Post_Service Follow_up, connectedTo, Service Recovery>
+<Self_Service Portal Management, connectedTo, Issue Escalation>
+<Self_Service Portal Management, connectedTo, Virtual Assistant Interaction>
+<Sentiment Analysis, complies, Self_Service Portal Management>
+<Sentiment Analysis, connectedTo, First Contact Resolution Optimization>
+<Sentiment Analysis, connectedTo, Issue Escalation>
+<Sentiment Analysis, connectedTo, Personalized Assistance>
+<Sentiment Analysis, connectedTo, Social Media Response>
+<Sentiment Analysis, connectedTo, Virtual Assistant Interaction>
+<Service Level Agreement Monitoring, connectedTo, Personalized Assistance>
+<Service Recovery, connectedTo, Live Chat Support>
+<Social Media Response, connectedTo, Customer Loyalty Program Support>
+<Social Media Response, connectedTo, Post_Service Follow_up>

test/diagrams/graph_hard/diagrams_105.dot

@@ -0,0 +1,89 @@
+digraph {
+	rankdir=RL
+	N0 [label="Email Support" color="#388E3C" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N1 [label="Knowledge Base Creation" color="#388E3C" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	N2 [label="Order Status Check" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+	N3 [label="Service Blueprinting" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N4 [label="Complaint Trend Analysis" color="#388E3C" fillcolor="#F1F8E9" shape=action style=filled]
+	N5 [label="Refund Processing" color="#388E3C" fillcolor="#F1F8E9" shape=action style=filled]
+	N6 [label="Inquiry Handling" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+	N7 [label="Product Information Provision" color="#CB9BE1" fillcolor="#F2E6F5" shape=inputoutput style=filled]
+	N8 [label="Customer Loyalty Program Support" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N9 [label="Feedback Loop to Product Development" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N10 [label="Feedback Collection" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N11 [label="Issue Escalation" color="#7E57C2" fillcolor="#D1C4E9" shape=rect style=filled]
+	N12 [label="FAQ Management" color="#388E3C" fillcolor="#F1F8E9" shape=box style=filled]
+	N13 [label="Complaint Resolution" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+	N14 [label="Service Level Agreement Monitoring" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N15 [label="Social Media Response" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N16 [label="Call Center Management" color="#388E3C" fillcolor="#F1F8E9" shape=action style=filled]
+	N17 [label="Technical Support" color="#7E57C2" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N18 [label="First Contact Resolution Optimization" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N19 [label="Customer Journey Mapping" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N20 [label="Proactive Communication" color="#7E57C2" fillcolor="#D1C4E9" shape=database style=filled]
+	S0 [label="" color="#388E3C" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#388E3C" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Customer Retention Strategies {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Customer Retention Strategies"
+		nest0_0 [label="Up_selling Opportunities" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+		nest0_1 [label="Multilingual Support" color="#7E57C2" fillcolor="#D1C4E9" shape=preparation style=filled]
+	}
+	subgraph cluster_Self_Service Portal Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Self_Service Portal Management"
+		nest1_0 [label="Live Chat Support" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+		nest1_1 [label="Customer Satisfaction Survey" color="#7E57C2" fillcolor="#D1C4E9" shape=action style=filled]
+		nest1_2 [label="Customer Relationship Management System Use" color="#388E3C" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N18 -> N19 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N19 -> N20 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N17 [color="#000000" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	nest1_0 -> nest1_1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N15 -> nest1_0 [color="#388E3C" penwidth=1.5 style=solid label="resolves" dir=forward]
+	nest1_2 -> N20 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N15 -> S0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N19 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N17 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N20 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N20 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N18 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N19 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#CB9BE1" penwidth=1.5 style=solid label="consults" dir=forward]
+	N5 -> M0 [color="#CB9BE1" penwidth=1.5 style=solid label="monitors" dir=forward]
+	M0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_105.txt

@@ -0,0 +1,42 @@
+<Call Center Management, connectedTo, Technical Support>
+<Complaint Resolution, connectedTo, Customer Journey Mapping>
+<Complaint Resolution, connectedTo, First Contact Resolution Optimization>
+<Complaint Resolution, connectedTo, Proactive Communication>
+<Complaint Resolution, connectedTo, Service Level Agreement Monitoring>
+<Complaint Resolution, connectedTo, Social Media Response>
+<Complaint Trend Analysis, connectedTo, Product Information Provision>
+<Complaint Trend Analysis, connectedTo, Refund Processing>
+<Customer Journey Mapping, connectedTo, Proactive Communication>
+<Customer Loyalty Program Support, connectedTo, Feedback Loop to Product Development>
+<Customer Loyalty Program Support, consults, Feedback Collection>
+<Customer Relationship Management System Use, connectedTo, Proactive Communication>
+<Customer Satisfaction Survey, connectedTo, Customer Relationship Management System Use>
+<Email Support, connectedTo, Knowledge Base Creation>
+<FAQ Management, connectedTo, Complaint Resolution>
+<Feedback Collection, connectedTo, Issue Escalation>
+<Feedback Loop to Product Development, connectedTo, Feedback Collection>
+<First Contact Resolution Optimization, connectedTo, Customer Journey Mapping>
+<Inquiry Handling, connectedTo, Product Information Provision>
+<Issue Escalation, connectedTo, FAQ Management>
+<Issue Escalation, connectedTo, Up_selling Opportunities>
+<Knowledge Base Creation, connectedTo, Feedback Collection>
+<Knowledge Base Creation, connectedTo, Order Status Check>
+<Knowledge Base Creation, connectedTo, Product Information Provision>
+<Live Chat Support, connectedTo, Customer Satisfaction Survey>
+<Multilingual Support, analyzes, Technical Support>
+<Order Status Check, connectedTo, Product Information Provision>
+<Order Status Check, connectedTo, Service Blueprinting>
+<Product Information Provision, connectedTo, Customer Loyalty Program Support>
+<Refund Processing, connectedTo, Inquiry Handling>
+<Refund Processing, monitors, Feedback Collection>
+<Service Blueprinting, connectedTo, Complaint Trend Analysis>
+<Service Blueprinting, connectedTo, Product Information Provision>
+<Service Level Agreement Monitoring, connectedTo, Social Media Response>
+<Social Media Response, connectedTo, Call Center Management>
+<Social Media Response, connectedTo, Customer Journey Mapping>
+<Social Media Response, connectedTo, First Contact Resolution Optimization>
+<Social Media Response, connectedTo, Proactive Communication>
+<Social Media Response, connectedTo, Technical Support>
+<Social Media Response, resolves, Live Chat Support>
+<Technical Support, connectedTo, First Contact Resolution Optimization>
+<Up_selling Opportunities, connectedTo, Multilingual Support>

test/diagrams/graph_hard/diagrams_106.dot

@@ -0,0 +1,77 @@
+digraph {
+	rankdir=LR
+	N0 [label="Sustainability Initiatives" color="#795548" fillcolor="#D7CCC8" shape=predefinedprocess style=filled]
+	N1 [label="Production Scheduling Integration" color="#E91E63" fillcolor="#F8BBD0" shape=hexagon style=filled]
+	N2 [label="Warehousing" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N3 [label="Supplier Selection" color="#795548" fillcolor="#D7CCC8" shape=predefinedprocess style=filled]
+	N4 [label="Last_Mile Delivery Optimization" color="#00BCD4" fillcolor="#B2EBF2" shape=inputoutput style=filled]
+	N5 [label="Material Flow Management" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+	N6 [label="Predictive Analytics" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+	N7 [label="Contract Manufacturing Oversight" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N8 [label="Intermodal Transportation" color="#795548" fillcolor="#D7CCC8" shape=parallelogram style=filled]
+	N9 [label="Reverse Logistics" color="#00BCD4" fillcolor="#B2EBF2" shape=predefinedprocess style=filled]
+	N10 [label="Data Analytics for Supply Chain" color="#00BCD4" fillcolor="#B2EBF2" shape=multipledocuments style=filled]
+	N11 [label="Digital Twin of Supply Chain" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+	N12 [label="Risk Management" color="#795548" fillcolor="#D7CCC8" shape=vnode_shape style=filled]
+	N13 [label="Resilience Planning" color="#E91E63" fillcolor="#F8BBD0" shape=document style=filled]
+	N14 [label="Production Planning" color="#795548" fillcolor="#D7CCC8" shape=rectangle style=filled]
+	N15 [label="Warehouse Automation" color="#795548" fillcolor="#D7CCC8" shape=database style=filled]
+	S0 [label="" color="#795548" fillcolor="#D7CCC8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#795548" fillcolor="#D7CCC8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#795548" fillcolor="#D7CCC8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Order Fulfillment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Order Fulfillment"
+		nest0_0 [label="Demand Planning" color="#795548" fillcolor="#D7CCC8" shape=inputoutput style=filled]
+		nest0_1 [label="Supplier Relationship Management" color="#00BCD4" fillcolor="#B2EBF2" shape=diamond style=filled]
+		nest0_2 [label="Risk Mitigation Strategies" color="#00BCD4" fillcolor="#B2EBF2" shape=multipledocuments style=filled]
+		nest0_3 [label="Supply Chain Finance" color="#795548" fillcolor="#D7CCC8" shape=document style=filled]
+	}
+	subgraph cluster_Transportation Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Transportation Management"
+		nest1_0 [label="Supply Chain Visibility" color="#795548" fillcolor="#D7CCC8" shape=rectangle style=filled]
+		nest1_1 [label="Circular Economy Practices" color="#E91E63" fillcolor="#F8BBD0" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#795548" penwidth=1.5 style=dashed label="transparency" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#795548" penwidth=1.5 style=dashed label="complies" dir=forward]
+	N10 -> N11 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#795548" penwidth=1.5 style=solid label="communicates" dir=forward]
+	nest0_1 -> nest0_2 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N13 -> nest0_0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N8 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest1_0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N11 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N12 -> S0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N11 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_106.txt

@@ -0,0 +1,33 @@
+<Circular Economy Practices, connectedTo, Digital Twin of Supply Chain>
+<Contract Manufacturing Oversight, connectedTo, Digital Twin of Supply Chain>
+<Contract Manufacturing Oversight, connectedTo, Intermodal Transportation>
+<Data Analytics for Supply Chain, connectedTo, Digital Twin of Supply Chain>
+<Demand Planning, communicates, Supplier Relationship Management>
+<Digital Twin of Supply Chain, connectedTo, Risk Management>
+<Intermodal Transportation, connectedTo, Digital Twin of Supply Chain>
+<Intermodal Transportation, connectedTo, Reverse Logistics>
+<Last_Mile Delivery Optimization, transparency, Material Flow Management>
+<Material Flow Management, connectedTo, Predictive Analytics>
+<Predictive Analytics, connectedTo, Contract Manufacturing Oversight>
+<Predictive Analytics, connectedTo, Digital Twin of Supply Chain>
+<Production Planning, connectedTo, Warehouse Automation>
+<Production Scheduling Integration, connectedTo, Digital Twin of Supply Chain>
+<Production Scheduling Integration, connectedTo, Warehousing>
+<Resilience Planning, connectedTo, Demand Planning>
+<Resilience Planning, connectedTo, Production Planning>
+<Resilience Planning, connectedTo, Supply Chain Visibility>
+<Reverse Logistics, complies, Data Analytics for Supply Chain>
+<Risk Management, connectedTo, Production Planning>
+<Risk Management, connectedTo, Resilience Planning>
+<Risk Management, connectedTo, Warehouse Automation>
+<Risk Mitigation Strategies, connectedTo, Supply Chain Finance>
+<Supplier Relationship Management, connectedTo, Risk Mitigation Strategies>
+<Supplier Selection, connectedTo, Digital Twin of Supply Chain>
+<Supplier Selection, connectedTo, Last_Mile Delivery Optimization>
+<Supply Chain Finance, connectedTo, Intermodal Transportation>
+<Supply Chain Visibility, connectedTo, Circular Economy Practices>
+<Sustainability Initiatives, connectedTo, Contract Manufacturing Oversight>
+<Sustainability Initiatives, connectedTo, Digital Twin of Supply Chain>
+<Sustainability Initiatives, connectedTo, Production Scheduling Integration>
+<Sustainability Initiatives, connectedTo, Reverse Logistics>
+<Warehousing, connectedTo, Supplier Selection>

test/diagrams/graph_hard/diagrams_107.dot

@@ -0,0 +1,74 @@
+digraph {
+	rankdir=RL
+	N0 [label="Last_Mile Delivery Optimization" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	N1 [label="Supply Chain Visibility" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N2 [label="Intermodal Transportation" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N3 [label="Resilience Planning" color="#388E3C" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N4 [label="Supply Chain Finance" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N5 [label="Customs Compliance" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N6 [label="Distribution Network Design" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N7 [label="Production Planning" color="#388E3C" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N8 [label="Procurement" color="#FFE470" fillcolor="#FFFAE0" shape=action style=filled]
+	N9 [label="Risk Mitigation Strategies" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N10 [label="Third_Party Logistics Management" color="#388E3C" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N11 [label="Reverse Logistics" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N12 [label="Order Fulfillment" color="#388E3C" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N13 [label="Vendor Managed Inventory" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+	N14 [label="Risk Management" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+	N15 [label="Digital Twin of Supply Chain" color="#FFE470" fillcolor="#FFFAE0" shape=rect style=filled]
+	N16 [label="Quality Control in Supply Chain" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N17 [label="Circular Economy Practices" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N18 [label="Global Sourcing Strategy" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	S0 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Production Scheduling Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Production Scheduling Integration"
+		nest0_0 [label="Hazardous Materials Handling" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+		nest0_1 [label="Performance Monitoring" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Sustainability Initiatives {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Sustainability Initiatives"
+		nest1_0 [label="Warehousing" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+		nest1_1 [label="Inventory Management" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#388E3C" penwidth=1.5 style=solid label="integrates" dir=forward]
+	N14 -> N15 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N2 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed label="mitigates" dir=forward]
+	N6 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N5 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#FFE470" penwidth=1.5 style=dashed label="tracks" dir=forward]
+	S0 -> N17 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N18 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#FFE470" penwidth=1.5 style=dashed label="returns" dir=forward]
+	M1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> N2 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_107.txt

@@ -0,0 +1,32 @@
+<Circular Economy Practices, connectedTo, Global Sourcing Strategy>
+<Customs Compliance, connectedTo, Distribution Network Design>
+<Digital Twin of Supply Chain, connectedTo, Quality Control in Supply Chain>
+<Distribution Network Design, analyzes, Production Planning>
+<Distribution Network Design, connectedTo, Hazardous Materials Handling>
+<Distribution Network Design, connectedTo, Warehousing>
+<Hazardous Materials Handling, connectedTo, Performance Monitoring>
+<Intermodal Transportation, connectedTo, Circular Economy Practices>
+<Intermodal Transportation, connectedTo, Global Sourcing Strategy>
+<Intermodal Transportation, connectedTo, Resilience Planning>
+<Intermodal Transportation, connectedTo, Supply Chain Finance>
+<Intermodal Transportation, returns, Distribution Network Design>
+<Intermodal Transportation, tracks, Distribution Network Design>
+<Inventory Management, connectedTo, Customs Compliance>
+<Last_Mile Delivery Optimization, connectedTo, Supply Chain Finance>
+<Last_Mile Delivery Optimization, connectedTo, Supply Chain Visibility>
+<Order Fulfillment, connectedTo, Vendor Managed Inventory>
+<Performance Monitoring, connectedTo, Intermodal Transportation>
+<Procurement, connectedTo, Risk Mitigation Strategies>
+<Production Planning, connectedTo, Procurement>
+<Quality Control in Supply Chain, connectedTo, Circular Economy Practices>
+<Resilience Planning, connectedTo, Distribution Network Design>
+<Resilience Planning, connectedTo, Supply Chain Finance>
+<Reverse Logistics, connectedTo, Order Fulfillment>
+<Risk Management, connectedTo, Digital Twin of Supply Chain>
+<Risk Mitigation Strategies, connectedTo, Third_Party Logistics Management>
+<Supply Chain Finance, connectedTo, Customs Compliance>
+<Supply Chain Visibility, connectedTo, Intermodal Transportation>
+<Third_Party Logistics Management, connectedTo, Reverse Logistics>
+<Vendor Managed Inventory, integrates, Risk Management>
+<Warehousing, connectedTo, Intermodal Transportation>
+<Warehousing, mitigates, Inventory Management>

test/diagrams/graph_hard/diagrams_108.dot

@@ -0,0 +1,71 @@
+digraph {
+	rankdir=TB
+	N0 [label="Resilience Planning" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	N1 [label="Transportation Management" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+	N2 [label="Data Analytics for Supply Chain" color="#CFCFCF" fillcolor="#F6F6F6" shape=multipledocuments style=filled]
+	N3 [label="Collaborative Planning" color="#607D8B" fillcolor="#CFD8DC" shape=rect style=filled]
+	N4 [label="Circular Economy Practices" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N5 [label="Distribution Network Design" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+	N6 [label="Contract Manufacturing Oversight" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N7 [label="Warehouse Automation" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	S0 [label="" color="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Last_Mile Delivery Optimization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Last_Mile Delivery Optimization"
+		nest0_0 [label="Risk Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=inputoutput style=filled]
+		nest0_1 [label="Digital Twin of Supply Chain" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+		nest0_2 [label="Blockchain for Traceability" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest0_3 [label="Third_Party Logistics Management" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	}
+	subgraph cluster_Risk Mitigation Strategies {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Risk Mitigation Strategies"
+		nest1_0 [label="Sustainability Initiatives" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+		nest1_1 [label="Supply Chain Finance" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+		nest1_2 [label="Order Fulfillment" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+		nest1_3 [label="Production Planning" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest1_0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N7 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#A2D0FF" penwidth=1.5 style=solid label="develops" dir=forward]
+	S0 -> N6 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S2 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#CFCFCF" penwidth=1.5 style=dashed label="implements" dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_108.txt

@@ -0,0 +1,30 @@
+<Blockchain for Traceability, connectedTo, Third_Party Logistics Management>
+<Circular Economy Practices, connectedTo, Distribution Network Design>
+<Circular Economy Practices, connectedTo, Risk Management>
+<Circular Economy Practices, implements, Contract Manufacturing Oversight>
+<Collaborative Planning, connectedTo, Circular Economy Practices>
+<Collaborative Planning, connectedTo, Contract Manufacturing Oversight>
+<Collaborative Planning, connectedTo, Distribution Network Design>
+<Collaborative Planning, connectedTo, Sustainability Initiatives>
+<Collaborative Planning, connectedTo, Warehouse Automation>
+<Contract Manufacturing Oversight, connectedTo, Warehouse Automation>
+<Data Analytics for Supply Chain, connectedTo, Circular Economy Practices>
+<Data Analytics for Supply Chain, connectedTo, Collaborative Planning>
+<Data Analytics for Supply Chain, connectedTo, Contract Manufacturing Oversight>
+<Data Analytics for Supply Chain, connectedTo, Warehouse Automation>
+<Digital Twin of Supply Chain, connectedTo, Blockchain for Traceability>
+<Distribution Network Design, connectedTo, Contract Manufacturing Oversight>
+<Order Fulfillment, connectedTo, Production Planning>
+<Production Planning, connectedTo, Warehouse Automation>
+<Resilience Planning, connectedTo, Circular Economy Practices>
+<Resilience Planning, connectedTo, Contract Manufacturing Oversight>
+<Resilience Planning, connectedTo, Transportation Management>
+<Risk Management, connectedTo, Digital Twin of Supply Chain>
+<Supply Chain Finance, connectedTo, Order Fulfillment>
+<Sustainability Initiatives, connectedTo, Supply Chain Finance>
+<Third_Party Logistics Management, connectedTo, Circular Economy Practices>
+<Transportation Management, connectedTo, Circular Economy Practices>
+<Transportation Management, connectedTo, Collaborative Planning>
+<Transportation Management, connectedTo, Contract Manufacturing Oversight>
+<Transportation Management, connectedTo, Data Analytics for Supply Chain>
+<Transportation Management, develops, Warehouse Automation>

test/diagrams/graph_hard/diagrams_109.txt

@@ -0,0 +1,35 @@
+<Community Relations, connectedTo, Exploration Drilling>
+<Community Relations, connectedTo, Noise Management>
+<Community Relations, connectedTo, Ventilation System>
+<Environmental Impact Assessment, connectedTo, Community Relations>
+<Environmental Impact Assessment, connectedTo, Exploration>
+<Environmental Impact Assessment, connectedTo, Mine Closure Planning>
+<Environmental Impact Assessment, develops, Resource Estimation>
+<Environmental Impact Assessment, drills, Ore Extraction>
+<Exploration, complies, Open Pit Mining Operations>
+<Exploration, connectedTo, Mine Closure Planning>
+<Exploration, connectedTo, Ventilation System>
+<Exploration, maintains, Geotechnical Stability Analysis>
+<Exploration Drilling, connectedTo, Permit Acquisition>
+<Feasibility Study, connectedTo, Geotechnical Stability Analysis>
+<Feasibility Study, connectedTo, Resource Estimation>
+<Geotechnical Stability Analysis, connectedTo, Open Pit Mining Operations>
+<Mine Closure Planning, connectedTo, Feasibility Study>
+<Mine Planning, connectedTo, Environmental Impact Assessment>
+<Mine Planning, connectedTo, Open Pit Mining Operations>
+<Mineral Processing, connectedTo, Ore Extraction>
+<Mineral Processing, extracts, Geotechnical Stability Analysis>
+<Mineral Processing, plans, Open Pit Mining Operations>
+<Noise Management, separates, Ore Sorting>
+<Ore Extraction, connectedTo, Geotechnical Stability Analysis>
+<Ore Extraction, connectedTo, Open Pit Mining Operations>
+<Ore Sorting, connectedTo, Geotechnical Stability Analysis>
+<Permit Acquisition, connectedTo, Resource Estimation>
+<Reclamation, connectedTo, Geotechnical Stability Analysis>
+<Reclamation, connectedTo, Mine Planning>
+<Regulatory Compliance Reporting, connectedTo, Mineral Processing>
+<Regulatory Compliance Reporting, connectedTo, Open Pit Mining Operations>
+<Resource Estimation, connectedTo, Community Relations>
+<Safety Management, connectedTo, Regulatory Compliance Reporting>
+<Tailings Management, connectedTo, Safety Management>
+<Ventilation System, connectedTo, Tailings Management>

test/diagrams/graph_hard/diagrams_11.txt

@@ -0,0 +1,28 @@
+<Advisory Committee Meeting, connectedTo, School Accreditation>
+<Advisory Committee Meeting, reports, Library Registration>
+<Alumni Network Management, connectedTo, Digital Resource Management>
+<Attendance Tracking, connectedTo, Career Services>
+<Attendance Tracking, connectedTo, Digital Resource Management>
+<Attendance Tracking, connectedTo, Internship Coordination>
+<Career Services, connectedTo, Certificate Issuance>
+<Certificate Issuance, schedules, Advisory Committee Meeting>
+<Course Selection, connectedTo, Internship Coordination>
+<Curriculum Development, connectedTo, Thesis Submission>
+<Digital Resource Management, connectedTo, Parent_Teacher Conference>
+<Extracurricular Activity, connectedTo, Alumni Network Management>
+<Internship Coordination, connectedTo, Scholarship Evaluation>
+<Internship Coordination, connectedTo, Study Abroad Program>
+<Library Registration, connectedTo, Course Selection>
+<Orientation, connectedTo, Timetable Scheduling>
+<Parent_Teacher Conference, connectedTo, Career Services>
+<Parent_Teacher Conference, connectedTo, School Accreditation>
+<Scholarship Evaluation, connectedTo, Orientation>
+<School Accreditation, connectedTo, Curriculum Development>
+<Study Abroad Program, conducts, Extracurricular Activity>
+<Thesis Submission, connectedTo, Internship Coordination>
+<Thesis Submission, connectedTo, Orientation>
+<Thesis Submission, connectedTo, Scholarship Evaluation>
+<Thesis Submission, connectedTo, Special Education Support>
+<Thesis Submission, connectedTo, Timetable Scheduling>
+<Thesis Submission, enrolls, Special Education Support>
+<Timetable Scheduling, connectedTo, Special Education Support>

test/diagrams/graph_hard/diagrams_110.dot

@@ -0,0 +1,82 @@
+digraph {
+	rankdir=BT
+	N0 [label="Exploration Drilling" color="#6EB76D" fillcolor="#E9F7E8" shape=inputoutput style=filled]
+	N1 [label="Ventilation System" color="#90A4AE" fillcolor="#ECEFF1" shape=document style=filled]
+	N2 [label="Ore Extraction" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N3 [label="Geological Survey" color="#6EB76D" fillcolor="#E9F7E8" shape=multipledocuments style=filled]
+	N4 [label="Asset Management" color="#6EB76D" fillcolor="#E9F7E8" shape=rect style=filled]
+	N5 [label="Noise Management" color="#90A4AE" fillcolor="#ECEFF1" shape=document style=filled]
+	N6 [label="Crushing and Grinding" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+	N7 [label="Feasibility Study" color="#D3EB9F" fillcolor="#F8FDD3" shape=action style=filled]
+	N8 [label="Waste Rock Management" color="#6EB76D" fillcolor="#E9F7E8" shape=database style=filled]
+	N9 [label="Reclamation" color="#90A4AE" fillcolor="#ECEFF1" shape=preparation style=filled]
+	N10 [label="Equipment Maintenance" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N11 [label="Resource Estimation" color="#D3EB9F" fillcolor="#F8FDD3" shape=rectangle style=filled]
+	N12 [label="Open Pit Mining Operations" color="#6EB76D" fillcolor="#E9F7E8" shape=diamond style=filled]
+	N13 [label="Underground Mining Operations" color="#90A4AE" fillcolor="#ECEFF1" shape=database style=filled]
+	N14 [label="Refining" color="#90A4AE" fillcolor="#ECEFF1" shape=vnode_shape style=filled]
+	N15 [label="Remote Operations Center" color="#90A4AE" fillcolor="#ECEFF1" shape=action style=filled]
+	S0 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Regulatory Compliance Reporting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Regulatory Compliance Reporting"
+		nest0_0 [label="Exploration" color="#6EB76D" fillcolor="#E9F7E8" shape=preparation style=filled]
+		nest0_1 [label="Environmental Impact Assessment" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+		nest0_2 [label="Drilling and Blasting" color="#90A4AE" fillcolor="#ECEFF1" shape=predefinedprocess style=filled]
+		nest0_3 [label="Mine Closure Planning" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	}
+	subgraph cluster_Water Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Water Management"
+		nest1_0 [label="Haulage" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+		nest1_1 [label="Robotics in Mining" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="safety" dir=forward]
+	N1 -> N2 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#D3EB9F" penwidth=1.5 style=solid label="separates" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N8 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N3 -> S2 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N14 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	M2 -> N6 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_112.dot

@@ -0,0 +1,71 @@
+digraph {
+	rankdir=TB
+	N0 [label="Ballast Water Management" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N1 [label="Search and Rescue Coordination" color="#90A4AE" fillcolor="#ECEFF1" shape=predefinedprocess style=filled]
+	N2 [label="Fisheries Management" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N3 [label="Autonomous Vessels" color="#90A4AE" fillcolor="#ECEFF1" shape=vnode_shape style=filled]
+	N4 [label="Pilotage" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N5 [label="Maritime Security" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N6 [label="Subsea Cable Laying" color="#AABEC6" fillcolor="#E0E6E9" shape=diamond style=filled]
+	N7 [label="Maritime Law Compliance" color="#AABEC6" fillcolor="#E0E6E9" shape=rect style=filled]
+	N8 [label="Route Planning" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N9 [label="Marine Insurance" color="#6EB76D" fillcolor="#E9F7E8" shape=hexagon style=filled]
+	S0 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Ship Registry {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ship Registry"
+		nest0_0 [label="Dry Docking" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+		nest0_1 [label="Port Congestion Management" color="#6EB76D" fillcolor="#E9F7E8" shape=inputoutput style=filled]
+		nest0_2 [label="Digitalization of Shipping" color="#AABEC6" fillcolor="#E0E6E9" shape=diamond style=filled]
+		nest0_3 [label="Bunkering" color="#6EB76D" fillcolor="#E9F7E8" shape=action style=filled]
+	}
+	subgraph cluster_Vessel Maintenance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Vessel Maintenance"
+		nest1_0 [label="Salvage Operations" color="#AABEC6" fillcolor="#E0E6E9" shape=hexagon style=filled]
+		nest1_1 [label="Ship_to_Shore Communication" color="#90A4AE" fillcolor="#ECEFF1" shape=diamond style=filled]
+		nest1_2 [label="Marine Safety Inspection" color="#AABEC6" fillcolor="#E0E6E9" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#AABEC6" penwidth=1.5 style=dashed label="systems" dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#90A4AE" penwidth=1.5 style=solid label="operates" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N7 [color="#000000" penwidth=1.5 style=solid label="transports" dir=forward]
+	nest1_0 -> nest1_1 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N2 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	M0 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N9 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_112.txt

@@ -0,0 +1,28 @@
+<Autonomous Vessels, connectedTo, Maritime Security>
+<Autonomous Vessels, connectedTo, Subsea Cable Laying>
+<Autonomous Vessels, operates, Pilotage>
+<Ballast Water Management, connectedTo, Autonomous Vessels>
+<Ballast Water Management, systems, Search and Rescue Coordination>
+<Bunkering, transports, Maritime Law Compliance>
+<Digitalization of Shipping, connectedTo, Bunkering>
+<Dry Docking, connectedTo, Port Congestion Management>
+<Fisheries Management, connectedTo, Autonomous Vessels>
+<Fisheries Management, connectedTo, Dry Docking>
+<Fisheries Management, connectedTo, Marine Insurance>
+<Fisheries Management, connectedTo, Route Planning>
+<Marine Safety Inspection, connectedTo, Fisheries Management>
+<Maritime Law Compliance, connectedTo, Marine Insurance>
+<Maritime Law Compliance, connectedTo, Route Planning>
+<Maritime Security, connectedTo, Subsea Cable Laying>
+<Pilotage, connectedTo, Marine Insurance>
+<Pilotage, connectedTo, Maritime Security>
+<Port Congestion Management, connectedTo, Digitalization of Shipping>
+<Route Planning, connectedTo, Marine Insurance>
+<Salvage Operations, connectedTo, Ship_to_Shore Communication>
+<Search and Rescue Coordination, connectedTo, Autonomous Vessels>
+<Search and Rescue Coordination, connectedTo, Fisheries Management>
+<Search and Rescue Coordination, connectedTo, Marine Insurance>
+<Search and Rescue Coordination, connectedTo, Pilotage>
+<Search and Rescue Coordination, connectedTo, Salvage Operations>
+<Ship_to_Shore Communication, connectedTo, Marine Safety Inspection>
+<Subsea Cable Laying, connectedTo, Maritime Law Compliance>

test/diagrams/graph_hard/diagrams_113.dot

@@ -0,0 +1,64 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cargo Loading" color="#FFF9AE" fillcolor="#FFFCE6" shape=document style=filled]
+	N1 [label="Ship Registry" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N2 [label="Inland Waterway Transport" color="#FFF176" fillcolor="#FFFDE7" shape=database style=filled]
+	N3 [label="Bunkering" color="#FFF9AE" fillcolor="#FFFCE6" shape=action style=filled]
+	N4 [label="Freight Forwarding" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N5 [label="Customs Clearance" color="#7E57C2" fillcolor="#D1C4E9" shape=action style=filled]
+	N6 [label="Subsea Cable Laying" color="#FFF176" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N7 [label="Search and Rescue Coordination" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N8 [label="Fuel Consumption Optimization" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N9 [label="Pollution Control" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N10 [label="Port Operations" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N11 [label="Hydrographic Surveying" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N12 [label="Dry Docking" color="#7E57C2" fillcolor="#D1C4E9" shape=document style=filled]
+	N13 [label="Crew Management" color="#FFF176" fillcolor="#FFFDE7" shape=database style=filled]
+	M0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Marine Research {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Marine Research"
+		nest0_0 [label="Green Shipping Initiatives" color="#7E57C2" fillcolor="#D1C4E9" shape=diamond style=filled]
+		nest0_1 [label="Marine Data Analytics" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+		nest0_2 [label="Route Planning" color="#FFF9AE" fillcolor="#FFFCE6" shape=inputoutput style=filled]
+		nest0_3 [label="Navigation" color="#FFF176" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Maritime Law Compliance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Maritime Law Compliance"
+		nest1_0 [label="Salvage Operations" color="#FFF176" fillcolor="#FFFDE7" shape=database style=filled]
+		nest1_1 [label="Vessel Maintenance" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFF176" penwidth=1.5 style=solid label="responds" dir=forward]
+	N11 -> nest0_0 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N8 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_113.txt

@@ -0,0 +1,27 @@
+<Bunkering, connectedTo, Freight Forwarding>
+<Bunkering, connectedTo, Pollution Control>
+<Cargo Loading, connectedTo, Ship Registry>
+<Customs Clearance, connectedTo, Subsea Cable Laying>
+<Dry Docking, connectedTo, Crew Management>
+<Freight Forwarding, connectedTo, Customs Clearance>
+<Freight Forwarding, connectedTo, Hydrographic Surveying>
+<Freight Forwarding, connectedTo, Pollution Control>
+<Fuel Consumption Optimization, connectedTo, Pollution Control>
+<Green Shipping Initiatives, connectedTo, Marine Data Analytics>
+<Hydrographic Surveying, connectedTo, Dry Docking>
+<Hydrographic Surveying, connectedTo, Green Shipping Initiatives>
+<Inland Waterway Transport, connectedTo, Bunkering>
+<Inland Waterway Transport, connectedTo, Hydrographic Surveying>
+<Marine Data Analytics, connectedTo, Route Planning>
+<Navigation, connectedTo, Ship Registry>
+<Pollution Control, connectedTo, Port Operations>
+<Port Operations, connectedTo, Hydrographic Surveying>
+<Route Planning, responds, Navigation>
+<Salvage Operations, connectedTo, Vessel Maintenance>
+<Search and Rescue Coordination, connectedTo, Fuel Consumption Optimization>
+<Search and Rescue Coordination, connectedTo, Hydrographic Surveying>
+<Ship Registry, connectedTo, Inland Waterway Transport>
+<Subsea Cable Laying, connectedTo, Pollution Control>
+<Subsea Cable Laying, connectedTo, Salvage Operations>
+<Subsea Cable Laying, connectedTo, Search and Rescue Coordination>
+<Vessel Maintenance, connectedTo, Fuel Consumption Optimization>

test/diagrams/graph_hard/diagrams_114.txt

@@ -0,0 +1,31 @@
+<Bunkering, connectedTo, Ship_to_Shore Communication>
+<Cargo Loading, connectedTo, Fuel Consumption Optimization>
+<Cargo Loading, connectedTo, Inland Waterway Transport>
+<Container Tracking, connectedTo, Fleet Management>
+<Crew Management, connectedTo, Marine Safety Inspection>
+<Fisheries Management, connectedTo, Fuel Consumption Optimization>
+<Fisheries Management, connectedTo, Marine Safety Inspection>
+<Fisheries Management, connectedTo, Voyage Optimization>
+<Fisheries Management, secures, Inland Waterway Transport>
+<Fleet Management, connectedTo, Crew Management>
+<Fuel Consumption Optimization, connectedTo, Terminal Management>
+<Hydrographic Surveying, connectedTo, Container Tracking>
+<Inland Waterway Transport, connectedTo, Terminal Management>
+<Inland Waterway Transport, connectedTo, Voyage Optimization>
+<Marine Safety Inspection, connectedTo, Cargo Loading>
+<Marine Safety Inspection, connectedTo, Fuel Consumption Optimization>
+<Marine Safety Inspection, connectedTo, Terminal Management>
+<Maritime Law Compliance, connectedTo, Hydrographic Surveying>
+<Maritime Law Compliance, connectedTo, Subsea Cable Laying>
+<Maritime Security, connectedTo, Bunkering>
+<Maritime Security, connectedTo, Fisheries Management>
+<Maritime Security, connectedTo, Fuel Consumption Optimization>
+<Maritime Security, connectedTo, Marine Safety Inspection>
+<Ship Design, connectedTo, Cargo Loading>
+<Ship_to_Shore Communication, salvages, Ship Design>
+<Subsea Cable Laying, connectedTo, Search and Rescue Coordination>
+<Terminal Management, connectedTo, Maritime Law Compliance>
+<Vessel Maintenance, connectedTo, Marine Safety Inspection>
+<Vessel Maintenance, connectedTo, Maritime Security>
+<Voyage Optimization, connectedTo, Fuel Consumption Optimization>
+<Voyage Optimization, connectedTo, Terminal Management>

test/diagrams/graph_hard/diagrams_115.txt

@@ -0,0 +1,24 @@
+<Data Acquisition, calibrates, Extravehicular Activity Planning>
+<Data Acquisition, connectedTo, In_Situ Resource Utilization>
+<Data Acquisition, connectedTo, Mission Design>
+<Exoplanet Discovery, connectedTo, Propellant Management>
+<Exoplanet Discovery, connectedTo, Space Weather Forecasting>
+<Exoplanet Discovery, connectedTo, Spacecraft Control>
+<Extravehicular Activity Planning, connectedTo, In_Situ Resource Utilization>
+<International Collaboration, connectedTo, Radiation Shielding Design>
+<Interplanetary Trajectory Calculation, connectedTo, Exoplanet Discovery>
+<Life Support Systems, connectedTo, Satellite Deployment>
+<Lunar Exploration, connectedTo, Spacecraft Control>
+<Mission Design, connectedTo, Interplanetary Trajectory Calculation>
+<Mission Design, protects, Extravehicular Activity Planning>
+<Propellant Management, connectedTo, International Collaboration>
+<Propellant Management, connectedTo, Space Weather Forecasting>
+<Radiation Shielding Design, connectedTo, Mission Design>
+<Radiation Shielding Design, inspires, Interplanetary Trajectory Calculation>
+<Sample Return Missions, connectedTo, Propellant Management>
+<Satellite Deployment, connectedTo, Data Acquisition>
+<Space Weather Forecasting, connectedTo, Extravehicular Activity Planning>
+<Space Weather Forecasting, connectedTo, Lunar Exploration>
+<Space Weather Forecasting, connectedTo, Satellite Deployment>
+<Space Weather Forecasting, navigates, Mission Design>
+<Spacecraft Control, connectedTo, Life Support Systems>

test/diagrams/graph_hard/diagrams_116.dot

@@ -0,0 +1,85 @@
+digraph {
+	rankdir=BT
+	N0 [label="Ground Station Operations" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N1 [label="Data Acquisition" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N2 [label="Mission Control Center Management" color="#AF56A6" fillcolor="#DDCEDD" shape=document style=filled]
+	N3 [label="Microgravity Experiments" color="#66BB6A" fillcolor="#E8F5E9" shape=hexagon style=filled]
+	N4 [label="Scientific Data Analysis" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+	N5 [label="Sample Return Missions" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N6 [label="Space Station Operations" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N7 [label="Launch Operations" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N8 [label="Astrophysics Research" color="#AF56A6" fillcolor="#DDCEDD" shape=inputoutput style=filled]
+	N9 [label="Autonomous Rendezvous and Docking" color="#AF56A6" fillcolor="#DDCEDD" shape=predefinedprocess style=filled]
+	N10 [label="Rocket Propulsion Development" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	N11 [label="Space Habitat Development" color="#66BB6A" fillcolor="#E8F5E9" shape=document style=filled]
+	N12 [label="Mars Mission Planning" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N13 [label="Payload Development" color="#66BB6A" fillcolor="#E8F5E9" shape=document style=filled]
+	N14 [label="International Collaboration" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+	N15 [label="In_Situ Resource Utilization" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	N16 [label="Mission Design" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N17 [label="Planetary Science Research" color="#AF56A6" fillcolor="#DDCEDD" shape=diamond style=filled]
+	S0 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Satellite Deployment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Satellite Deployment"
+		nest0_0 [label="Deep Space Communications" color="#FFB2A5" fillcolor="#FFDCD6" shape=rectangle style=filled]
+		nest0_1 [label="Radiation Shielding Design" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	}
+	subgraph cluster_New Space Technology Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="New Space Technology Development"
+		nest1_0 [label="Exoplanet Discovery" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+		nest1_1 [label="Lunar Exploration" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+		nest1_2 [label="Interplanetary Trajectory Calculation" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+		nest1_3 [label="Launch Vehicle Integration" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#66BB6A" penwidth=1.5 style=dashed label="warns" dir=forward]
+	N9 -> N10 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FFB2A5" penwidth=1.5 style=solid label="calibrates" dir=forward]
+	N13 -> N14 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N9 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#AF56A6" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N13 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N14 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#AF56A6" penwidth=1.5 style=dashed label="simulates" dir=forward]
+	S0 -> N15 [color="#66BB6A" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N14 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N17 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S2 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	S2 -> N17 [color="#000000" penwidth=1.5 style=solid label="collects" dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> M0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N15 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N17 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N14 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	M1 -> N17 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_116.txt

@@ -0,0 +1,37 @@
+<Astrophysics Research, warns, Autonomous Rendezvous and Docking>
+<Autonomous Rendezvous and Docking, connectedTo, Rocket Propulsion Development>
+<Data Acquisition, connectedTo, Mission Control Center Management>
+<Deep Space Communications, connectedTo, Radiation Shielding Design>
+<Exoplanet Discovery, connectedTo, Lunar Exploration>
+<Ground Station Operations, connectedTo, Data Acquisition>
+<In_Situ Resource Utilization, connectedTo, Mission Design>
+<In_Situ Resource Utilization, connectedTo, Planetary Science Research>
+<International Collaboration, connectedTo, In_Situ Resource Utilization>
+<International Collaboration, connectedTo, Mission Design>
+<International Collaboration, connectedTo, Planetary Science Research>
+<Interplanetary Trajectory Calculation, protects, Launch Vehicle Integration>
+<Launch Operations, connectedTo, Astrophysics Research>
+<Launch Vehicle Integration, connectedTo, International Collaboration>
+<Lunar Exploration, connectedTo, Interplanetary Trajectory Calculation>
+<Mars Mission Planning, calibrates, Payload Development>
+<Microgravity Experiments, connectedTo, Scientific Data Analysis>
+<Mission Control Center Management, connectedTo, Microgravity Experiments>
+<Mission Control Center Management, connectedTo, Planetary Science Research>
+<Mission Design, connectedTo, Planetary Science Research>
+<Payload Development, analyzes, In_Situ Resource Utilization>
+<Payload Development, connectedTo, Exoplanet Discovery>
+<Payload Development, connectedTo, International Collaboration>
+<Payload Development, simulates, Mission Design>
+<Radiation Shielding Design, connectedTo, Autonomous Rendezvous and Docking>
+<Rocket Propulsion Development, connectedTo, Space Habitat Development>
+<Sample Return Missions, collects, Planetary Science Research>
+<Sample Return Missions, connectedTo, Payload Development>
+<Sample Return Missions, connectedTo, Rocket Propulsion Development>
+<Sample Return Missions, connectedTo, Space Station Operations>
+<Scientific Data Analysis, connectedTo, Planetary Science Research>
+<Scientific Data Analysis, connectedTo, Sample Return Missions>
+<Space Habitat Development, connectedTo, Deep Space Communications>
+<Space Habitat Development, connectedTo, Mars Mission Planning>
+<Space Habitat Development, connectedTo, Planetary Science Research>
+<Space Station Operations, connectedTo, Launch Operations>
+<Space Station Operations, connectedTo, Planetary Science Research>

test/diagrams/graph_hard/diagrams_117.dot

@@ -0,0 +1,64 @@
+digraph {
+	rankdir=BT
+	N0 [label="Astrophysics Research" color="#FF8A65" fillcolor="#FBE9E7" shape=preparation style=filled]
+	N1 [label="Extravehicular Activity Planning" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+	N2 [label="Scientific Data Analysis" color="#FF8A65" fillcolor="#FBE9E7" shape=action style=filled]
+	N3 [label="Space Station Operations" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N4 [label="Data Acquisition" color="#E91E63" fillcolor="#F8BBD0" shape=rectangle style=filled]
+	N5 [label="Rocket Propulsion Development" color="#FF8A65" fillcolor="#FBE9E7" shape=preparation style=filled]
+	N6 [label="Exoplanet Discovery" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N7 [label="Deep Space Communications" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N8 [label="Space Habitat Development" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	N9 [label="International Collaboration" color="#E91E63" fillcolor="#F8BBD0" shape=rectangle style=filled]
+	N10 [label="Telemetry Monitoring" color="#92C79A" fillcolor="#E8F0EA" shape=predefinedprocess style=filled]
+	S0 [label="" color="#92C79A" fillcolor="#E8F0EA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Ground Station Operations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ground Station Operations"
+		nest0_0 [label="Astronaut Training" color="#FF8A65" fillcolor="#FBE9E7" shape=rectangle style=filled]
+		nest0_1 [label="Re_entry Vehicle Design" color="#92C79A" fillcolor="#E8F0EA" shape=parallelogram style=filled]
+		nest0_2 [label="Autonomous Rendezvous and Docking" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	}
+	subgraph cluster_Commercial Space Flight Regulation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Commercial Space Flight Regulation"
+		nest1_0 [label="New Space Technology Development" color="#E91E63" fillcolor="#F8BBD0" shape=diamond style=filled]
+		nest1_1 [label="Launch Vehicle Integration" color="#92C79A" fillcolor="#E8F0EA" shape=rectangle style=filled]
+		nest1_2 [label="Sample Return Missions" color="#92C79A" fillcolor="#E8F0EA" shape=document style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="licenses" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N7 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S2 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_118.dot

@@ -0,0 +1,64 @@
+digraph {
+	rankdir=RL
+	N0 [label="Indigenous Knowledge Integration" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N1 [label="Water Resource Management under Climate Change" color="#4FC3F7" fillcolor="#E1F5FE" shape=rectangle style=filled]
+	N2 [label="Solar Radiation Management Research" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N3 [label="Public Engagement on Climate" color="#4FC3F7" fillcolor="#E1F5FE" shape=diamond style=filled]
+	N4 [label="Ocean Acidification Studies" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N5 [label="Greenhouse Gas Measurement" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N6 [label="Climate Modeling" color="#7E57C2" fillcolor="#D1C4E9" shape=rect style=filled]
+	N7 [label="Carbon Cycle Research" color="#4FC3F7" fillcolor="#E1F5FE" shape=rectangle style=filled]
+	N8 [label="Drought Monitoring and Forecasting" color="#4FC3F7" fillcolor="#E1F5FE" shape=database style=filled]
+	N9 [label="Data Collection" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N10 [label="Green Technology Incubation" color="#CB9BE1" fillcolor="#F2E6F5" shape=inputoutput style=filled]
+	N11 [label="Adaptation Strategy Development" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Renewable Energy Potential Assessment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Renewable Energy Potential Assessment"
+		nest0_0 [label="Atmospheric Monitoring" color="#7E57C2" fillcolor="#D1C4E9" shape=preparation style=filled]
+		nest0_1 [label="Sea Level Rise Projection" color="#7E57C2" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+		nest0_2 [label="Permafrost Thaw Assessment" color="#4FC3F7" fillcolor="#E1F5FE" shape=rect style=filled]
+		nest0_3 [label="Flood Risk Assessment" color="#7E57C2" fillcolor="#D1C4E9" shape=action style=filled]
+	}
+	subgraph cluster_Ice Sheet Dynamics {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ice Sheet Dynamics"
+		nest1_0 [label="Climate Change Vulnerability Assessment" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+		nest1_1 [label="Mitigation Technology Evaluation" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+		nest1_2 [label="Ecological Footprint Calculation" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N10 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_118.txt

@@ -0,0 +1,26 @@
+<Atmospheric Monitoring, connectedTo, Sea Level Rise Projection>
+<Carbon Cycle Research, connectedTo, Adaptation Strategy Development>
+<Carbon Cycle Research, connectedTo, Drought Monitoring and Forecasting>
+<Carbon Cycle Research, connectedTo, Green Technology Incubation>
+<Climate Change Vulnerability Assessment, connectedTo, Mitigation Technology Evaluation>
+<Climate Modeling, connectedTo, Carbon Cycle Research>
+<Data Collection, connectedTo, Green Technology Incubation>
+<Drought Monitoring and Forecasting, connectedTo, Data Collection>
+<Ecological Footprint Calculation, connectedTo, Green Technology Incubation>
+<Flood Risk Assessment, connectedTo, Solar Radiation Management Research>
+<Green Technology Incubation, connectedTo, Adaptation Strategy Development>
+<Greenhouse Gas Measurement, connectedTo, Atmospheric Monitoring>
+<Greenhouse Gas Measurement, connectedTo, Climate Modeling>
+<Indigenous Knowledge Integration, connectedTo, Ocean Acidification Studies>
+<Indigenous Knowledge Integration, connectedTo, Water Resource Management under Climate Change>
+<Mitigation Technology Evaluation, connectedTo, Ecological Footprint Calculation>
+<Ocean Acidification Studies, connectedTo, Greenhouse Gas Measurement>
+<Permafrost Thaw Assessment, connectedTo, Flood Risk Assessment>
+<Public Engagement on Climate, connectedTo, Climate Change Vulnerability Assessment>
+<Public Engagement on Climate, connectedTo, Ocean Acidification Studies>
+<Sea Level Rise Projection, connectedTo, Permafrost Thaw Assessment>
+<Solar Radiation Management Research, connectedTo, Public Engagement on Climate>
+<Water Resource Management under Climate Change, connectedTo, Adaptation Strategy Development>
+<Water Resource Management under Climate Change, connectedTo, Data Collection>
+<Water Resource Management under Climate Change, connectedTo, Ocean Acidification Studies>
+<Water Resource Management under Climate Change, connectedTo, Solar Radiation Management Research>

test/diagrams/graph_hard/diagrams_119.dot

@@ -0,0 +1,66 @@
+digraph {
+	rankdir=RL
+	N0 [label="Ocean Current Analysis" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+	N1 [label="Ecosystem Response Modeling" color="#4285F4" fillcolor="#D0E0F8" shape=rectangle style=filled]
+	N2 [label="Climate Modeling" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+	N3 [label="Ocean Acidification Studies" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N4 [label="Greenhouse Gas Measurement" color="#4285F4" fillcolor="#D0E0F8" shape=database style=filled]
+	N5 [label="Climate Finance Tracking" color="#FFEB3B" fillcolor="#FFF9C4" shape=multipledocuments style=filled]
+	N6 [label="Aerosol Impact Assessment" color="#4285F4" fillcolor="#D0E0F8" shape=database style=filled]
+	N7 [label="Water Resource Management under Climate Change" color="#4285F4" fillcolor="#D0E0F8" shape=parallelogram style=filled]
+	N8 [label="Adaptation Strategy Development" color="#4285F4" fillcolor="#D0E0F8" shape=rectangle style=filled]
+	N9 [label="Environmental Justice Study" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+	S1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#4285F4" fillcolor="#D0E0F8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Glacier Mass Balance Monitoring {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Glacier Mass Balance Monitoring"
+		nest0_0 [label="Biodiversity Impact Assessment" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+		nest0_1 [label="Flood Risk Assessment" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+		nest0_2 [label="Renewable Energy Potential Assessment" color="#FFEB3B" fillcolor="#FFF9C4" shape=inputoutput style=filled]
+		nest0_3 [label="Climate Resilient Agriculture" color="#FFEB3B" fillcolor="#FFF9C4" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Remote Sensing for Climate {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Remote Sensing for Climate"
+		nest1_0 [label="Drought Monitoring and Forecasting" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+		nest1_1 [label="Climate Impact Assessment" color="#FFEB3B" fillcolor="#FFF9C4" shape=rect style=filled]
+		nest1_2 [label="Carbon Sequestration Technologies" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+		nest1_3 [label="Permafrost Thaw Assessment" color="#FF5722" fillcolor="#FFCCBC" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#4285F4" penwidth=1.5 style=dashed label="observes" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFEB3B" penwidth=1.5 style=solid label="measures" dir=forward]
+	N5 -> N6 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=solid label="validates" dir=forward]
+	N5 -> M2 [color="#000000" penwidth=1.5 style=solid label="attributes" dir=forward]
+	M2 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_12.dot

@@ -0,0 +1,66 @@
+digraph {
+	rankdir=BT
+	N0 [label="Student Enrollment" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+	N1 [label="Course Selection" color="#DCE775" fillcolor="#FCFCE7" shape=parallelogram style=filled]
+	N2 [label="Assignment Submission" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+	N3 [label="Graduation Approval" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N4 [label="Peer Tutoring" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N5 [label="Academic Review" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N6 [label="Internship Coordination" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N7 [label="Grade Entry" color="#CB9BE1" fillcolor="#F2E6F5" shape=inputoutput style=filled]
+	N8 [label="Thesis Submission" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+	N9 [label="Timetable Scheduling" color="#DCE775" fillcolor="#FCFCE7" shape=parallelogram style=filled]
+	N10 [label="Field Trip Coordination" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+	N11 [label="Result Declaration" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+	N12 [label="Research Grant Application" color="#E57373" fillcolor="#FFEBEE" shape=vnode_shape style=filled]
+	S0 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Career Services {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Career Services"
+		nest0_0 [label="Student Feedback Collection" color="#E57373" fillcolor="#FFEBEE" shape=vnode_shape style=filled]
+		nest0_1 [label="Extracurricular Activity" color="#DCE775" fillcolor="#FCFCE7" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Disciplinary Action {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Disciplinary Action"
+		nest1_0 [label="Curriculum Development" color="#DCE775" fillcolor="#FCFCE7" shape=preparation style=filled]
+		nest1_1 [label="Transcript Issuance" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+		nest1_2 [label="Document Verification" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+		nest1_3 [label="Club Registration" color="#DCE775" fillcolor="#FCFCE7" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N6 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest1_0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#DCE775" penwidth=1.5 style=solid label="submits" dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#CB9BE1" penwidth=1.5 style=dashed label="grants" dir=forward]
+	S1 -> N11 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M2 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	M2 -> N11 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_12.txt

@@ -0,0 +1,28 @@
+<Academic Review, connectedTo, Internship Coordination>
+<Academic Review, connectedTo, Result Declaration>
+<Assignment Submission, connectedTo, Graduation Approval>
+<Assignment Submission, connectedTo, Result Declaration>
+<Assignment Submission, connectedTo, Timetable Scheduling>
+<Assignment Submission, submits, Peer Tutoring>
+<Club Registration, connectedTo, Assignment Submission>
+<Course Selection, connectedTo, Assignment Submission>
+<Curriculum Development, connectedTo, Transcript Issuance>
+<Document Verification, connectedTo, Club Registration>
+<Extracurricular Activity, connectedTo, Internship Coordination>
+<Field Trip Coordination, connectedTo, Result Declaration>
+<Grade Entry, connectedTo, Thesis Submission>
+<Graduation Approval, connectedTo, Peer Tutoring>
+<Internship Coordination, connectedTo, Grade Entry>
+<Peer Tutoring, connectedTo, Academic Review>
+<Peer Tutoring, connectedTo, Student Feedback Collection>
+<Result Declaration, connectedTo, Curriculum Development>
+<Result Declaration, connectedTo, Research Grant Application>
+<Student Enrollment, connectedTo, Course Selection>
+<Student Enrollment, connectedTo, Research Grant Application>
+<Student Enrollment, connectedTo, Result Declaration>
+<Student Enrollment, grants, Timetable Scheduling>
+<Student Feedback Collection, connectedTo, Extracurricular Activity>
+<Thesis Submission, connectedTo, Timetable Scheduling>
+<Timetable Scheduling, connectedTo, Field Trip Coordination>
+<Timetable Scheduling, connectedTo, Result Declaration>
+<Transcript Issuance, connectedTo, Document Verification>

test/diagrams/graph_hard/diagrams_120.dot

@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Data Collection" color="#B0C5CD" fillcolor="#DFE7EB" shape=hexagon style=filled]
+	N1 [label="Public Engagement on Climate" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+	N2 [label="Ecosystem Response Modeling" color="#6FE1D5" fillcolor="#C9EFEC" shape=rect style=filled]
+	N3 [label="Climate Education Programs" color="#6FE1D5" fillcolor="#C9EFEC" shape=predefinedprocess style=filled]
+	N4 [label="Ocean Acidification Studies" color="#6FE1D5" fillcolor="#C9EFEC" shape=parallelogram style=filled]
+	N5 [label="Water Resource Management under Climate Change" color="#6FE1D5" fillcolor="#C9EFEC" shape=rectangle style=filled]
+	N6 [label="Greenhouse Gas Measurement" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	N7 [label="Ice Sheet Dynamics" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N8 [label="Extreme Weather Event Analysis" color="#FFF8A6" fillcolor="#FFFDE0" shape=database style=filled]
+	N9 [label="Climate Finance Tracking" color="#6FE1D5" fillcolor="#C9EFEC" shape=multipledocuments style=filled]
+	N10 [label="Paleoclimate Reconstruction" color="#FFF8A6" fillcolor="#FFFDE0" shape=parallelogram style=filled]
+	N11 [label="Ecological Footprint Calculation" color="#B0C5CD" fillcolor="#DFE7EB" shape=predefinedprocess style=filled]
+	S0 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Arctic and Antarctic Research {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Arctic and Antarctic Research"
+		nest0_0 [label="Green Technology Incubation" color="#6FE1D5" fillcolor="#C9EFEC" shape=parallelogram style=filled]
+		nest0_1 [label="Drought Monitoring and Forecasting" color="#FFF8A6" fillcolor="#FFFDE0" shape=preparation style=filled]
+	}
+	subgraph cluster_Permafrost Thaw Assessment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Permafrost Thaw Assessment"
+		nest1_0 [label="Ocean Current Analysis" color="#B0C5CD" fillcolor="#DFE7EB" shape=parallelogram style=filled]
+		nest1_1 [label="Satellite Data Interpretation" color="#B0C5CD" fillcolor="#DFE7EB" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="strategies" dir=forward]
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+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
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+	S0 -> N8 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S2 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N11 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#B0C5CD" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_120.txt

@@ -0,0 +1,27 @@
+<Climate Education Programs, connectedTo, Ecological Footprint Calculation>
+<Climate Education Programs, connectedTo, Ocean Acidification Studies>
+<Climate Education Programs, connectedTo, Water Resource Management under Climate Change>
+<Climate Finance Tracking, connectedTo, Paleoclimate Reconstruction>
+<Data Collection, connectedTo, Public Engagement on Climate>
+<Drought Monitoring and Forecasting, connectedTo, Paleoclimate Reconstruction>
+<Ecosystem Response Modeling, connectedTo, Climate Education Programs>
+<Ecosystem Response Modeling, connectedTo, Green Technology Incubation>
+<Extreme Weather Event Analysis, connectedTo, Climate Finance Tracking>
+<Extreme Weather Event Analysis, connectedTo, Ecological Footprint Calculation>
+<Extreme Weather Event Analysis, connectedTo, Paleoclimate Reconstruction>
+<Green Technology Incubation, connectedTo, Drought Monitoring and Forecasting>
+<Greenhouse Gas Measurement, educates, Ice Sheet Dynamics>
+<Ice Sheet Dynamics, connectedTo, Extreme Weather Event Analysis>
+<Ocean Acidification Studies, connectedTo, Ecological Footprint Calculation>
+<Ocean Acidification Studies, connectedTo, Water Resource Management under Climate Change>
+<Ocean Current Analysis, connectedTo, Satellite Data Interpretation>
+<Paleoclimate Reconstruction, simulates, Ecological Footprint Calculation>
+<Public Engagement on Climate, analyzes, Water Resource Management under Climate Change>
+<Public Engagement on Climate, connectedTo, Ocean Current Analysis>
+<Public Engagement on Climate, strategies, Ecosystem Response Modeling>
+<Satellite Data Interpretation, connectedTo, Ecological Footprint Calculation>
+<Water Resource Management under Climate Change, connectedTo, Climate Finance Tracking>
+<Water Resource Management under Climate Change, connectedTo, Ecological Footprint Calculation>
+<Water Resource Management under Climate Change, connectedTo, Extreme Weather Event Analysis>
+<Water Resource Management under Climate Change, connectedTo, Greenhouse Gas Measurement>
+<Water Resource Management under Climate Change, connectedTo, Paleoclimate Reconstruction>

test/diagrams/graph_hard/diagrams_121.dot

@@ -0,0 +1,69 @@
+digraph {
+	rankdir=TB
+	N0 [label="Temperature Monitoring" color="#00BCD4" fillcolor="#B2EBF2" shape=predefinedprocess style=filled]
+	N1 [label="Storm Tracking" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N2 [label="Air Quality Forecasting" color="#FFCC80" fillcolor="#FFF0CC" shape=parallelogram style=filled]
+	N3 [label="Hurricane Trajectory Modeling" color="#FFCC80" fillcolor="#FFF0CC" shape=diamond style=filled]
+	N4 [label="Snowfall Measurement" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+	N5 [label="Fire Weather Forecasting" color="#00BCD4" fillcolor="#B2EBF2" shape=vnode_shape style=filled]
+	N6 [label="Boundary Layer Study" color="#F44336" fillcolor="#FFCDD2" shape=action style=filled]
+	N7 [label="Humidity Sensing" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N8 [label="Precipitation Measurement" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N9 [label="Marine Weather Forecast" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+	N10 [label="Tornado Watch or Warning" color="#00BCD4" fillcolor="#B2EBF2" shape=parallelogram style=filled]
+	N11 [label="Upper Air Chart Analysis" color="#F44336" fillcolor="#FFCDD2" shape=document style=filled]
+	N12 [label="Radar Imaging" color="#00BCD4" fillcolor="#B2EBF2" shape=hexagon style=filled]
+	N13 [label="Weather Forecasting" color="#F44336" fillcolor="#FFCDD2" shape=preparation style=filled]
+	S0 [label="" color="#FFCC80" fillcolor="#FFF0CC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Meteorological Station Maintenance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Meteorological Station Maintenance"
+		nest0_0 [label="Agricultural Weather Advisory" color="#00BCD4" fillcolor="#B2EBF2" shape=preparation style=filled]
+		nest0_1 [label="Climate Modeling" color="#00BCD4" fillcolor="#B2EBF2" shape=hexagon style=filled]
+		nest0_2 [label="Pollution Dispersion Modeling" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+		nest0_3 [label="Flood Prediction" color="#FFCC80" fillcolor="#FFF0CC" shape=action style=filled]
+	}
+	subgraph cluster_Severe Weather Warning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Severe Weather Warning"
+		nest1_0 [label="Atmospheric Data Collection" color="#FFCC80" fillcolor="#FFF0CC" shape=action style=filled]
+		nest1_1 [label="Meteorological Instrument Calibration" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+		nest1_2 [label="Ocean_Atmosphere Interaction Study" color="#FFCC80" fillcolor="#FFF0CC" shape=rect style=filled]
+	}
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+	N2 -> nest1_0 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
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+	N4 -> M1 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_121.txt

@@ -0,0 +1,29 @@
+<Agricultural Weather Advisory, connectedTo, Climate Modeling>
+<Air Quality Forecasting, connectedTo, Atmospheric Data Collection>
+<Air Quality Forecasting, connectedTo, Hurricane Trajectory Modeling>
+<Atmospheric Data Collection, connectedTo, Meteorological Instrument Calibration>
+<Boundary Layer Study, connectedTo, Humidity Sensing>
+<Climate Modeling, connectedTo, Pollution Dispersion Modeling>
+<Fire Weather Forecasting, connectedTo, Boundary Layer Study>
+<Fire Weather Forecasting, connectedTo, Humidity Sensing>
+<Flood Prediction, connectedTo, Boundary Layer Study>
+<Humidity Sensing, connectedTo, Precipitation Measurement>
+<Hurricane Trajectory Modeling, connectedTo, Snowfall Measurement>
+<Marine Weather Forecast, connectedTo, Tornado Watch or Warning>
+<Meteorological Instrument Calibration, connectedTo, Ocean_Atmosphere Interaction Study>
+<Ocean_Atmosphere Interaction Study, connectedTo, Storm Tracking>
+<Pollution Dispersion Modeling, connectedTo, Flood Prediction>
+<Precipitation Measurement, connectedTo, Marine Weather Forecast>
+<Precipitation Measurement, connectedTo, Tornado Watch or Warning>
+<Precipitation Measurement, connectedTo, Upper Air Chart Analysis>
+<Radar Imaging, connectedTo, Weather Forecasting>
+<Snowfall Measurement, connectedTo, Fire Weather Forecasting>
+<Snowfall Measurement, connectedTo, Humidity Sensing>
+<Storm Tracking, connectedTo, Air Quality Forecasting>
+<Storm Tracking, connectedTo, Boundary Layer Study>
+<Storm Tracking, connectedTo, Weather Forecasting>
+<Storm Tracking, generates, Radar Imaging>
+<Temperature Monitoring, connectedTo, Storm Tracking>
+<Tornado Watch or Warning, connectedTo, Agricultural Weather Advisory>
+<Tornado Watch or Warning, connectedTo, Upper Air Chart Analysis>
+<Upper Air Chart Analysis, connectedTo, Radar Imaging>

test/diagrams/graph_hard/diagrams_122.dot

@@ -0,0 +1,80 @@
+digraph {
+	rankdir=BT
+	N0 [label="Meteorological Instrument Calibration" color="#FF9800" fillcolor="#FFE0B2" shape=rectangle style=filled]
+	N1 [label="Aviation Weather Briefing" color="#FF9800" fillcolor="#FFE0B2" shape=rectangle style=filled]
+	N2 [label="Humidity Sensing" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N3 [label="Severe Weather Warning" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N4 [label="Climate Data Archiving" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N5 [label="Temperature Monitoring" color="#DCE775" fillcolor="#F9FBE7" shape=rect style=filled]
+	N6 [label="Synoptic Chart Analysis" color="#4285F4" fillcolor="#D0E0F8" shape=action style=filled]
+	N7 [label="Numerical Weather Prediction" color="#4285F4" fillcolor="#D0E0F8" shape=vnode_shape style=filled]
+	N8 [label="Climate Change Impact Study" color="#DCE775" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N9 [label="Fire Weather Forecasting" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N10 [label="Seasonal Outlook Preparation" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+	N11 [label="Upper Air Chart Analysis" color="#FF9800" fillcolor="#FFE0B2" shape=diamond style=filled]
+	N12 [label="Tropical Cyclone Analysis" color="#DCE775" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N13 [label="Nowcasting" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N14 [label="Precipitation Measurement" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+	N15 [label="Drought Monitoring" color="#FF9800" fillcolor="#FFE0B2" shape=action style=filled]
+	N16 [label="Pollution Dispersion Modeling" color="#4285F4" fillcolor="#D0E0F8" shape=action style=filled]
+	N17 [label="Satellite Meteorology" color="#4285F4" fillcolor="#D0E0F8" shape=database style=filled]
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+	M1 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Air Quality Forecasting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Air Quality Forecasting"
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+		nest0_2 [label="Public Weather Briefing" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	}
+	subgraph cluster_Snowfall Measurement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Snowfall Measurement"
+		nest1_0 [label="Mesoscale Meteorology" color="#DCE775" fillcolor="#F9FBE7" shape=database style=filled]
+		nest1_1 [label="Meteorological Station Maintenance" color="#4285F4" fillcolor="#D0E0F8" shape=rect style=filled]
+	}
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+	N0 -> M0 [color="#FF9800" penwidth=1.5 style=dashed label="validates" dir=forward]
+	N3 -> M0 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
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+	N8 -> M1 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	M1 -> N10 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_122.txt

@@ -0,0 +1,35 @@
+<Atmospheric Data Collection, monitors, Public Weather Briefing>
+<Aviation Weather Briefing, connectedTo, Humidity Sensing>
+<Aviation Weather Briefing, connectedTo, Seasonal Outlook Preparation>
+<Aviation Weather Briefing, connectedTo, Temperature Monitoring>
+<Climate Change Impact Study, connectedTo, Fire Weather Forecasting>
+<Climate Change Impact Study, connectedTo, Seasonal Outlook Preparation>
+<Climate Data Archiving, studies, Temperature Monitoring>
+<Drought Monitoring, maps, Pollution Dispersion Modeling>
+<Fire Weather Forecasting, connectedTo, Seasonal Outlook Preparation>
+<Humidity Sensing, connectedTo, Radar Imaging>
+<Humidity Sensing, connectedTo, Severe Weather Warning>
+<Humidity Sensing, connectedTo, Temperature Monitoring>
+<Mesoscale Meteorology, connectedTo, Meteorological Station Maintenance>
+<Meteorological Instrument Calibration, connectedTo, Aviation Weather Briefing>
+<Meteorological Instrument Calibration, validates, Temperature Monitoring>
+<Meteorological Station Maintenance, connectedTo, Synoptic Chart Analysis>
+<Nowcasting, connectedTo, Mesoscale Meteorology>
+<Nowcasting, connectedTo, Precipitation Measurement>
+<Numerical Weather Prediction, connectedTo, Climate Change Impact Study>
+<Numerical Weather Prediction, connectedTo, Pollution Dispersion Modeling>
+<Numerical Weather Prediction, connectedTo, Seasonal Outlook Preparation>
+<Numerical Weather Prediction, connectedTo, Tropical Cyclone Analysis>
+<Pollution Dispersion Modeling, connectedTo, Satellite Meteorology>
+<Precipitation Measurement, connectedTo, Drought Monitoring>
+<Public Weather Briefing, connectedTo, Precipitation Measurement>
+<Radar Imaging, connectedTo, Atmospheric Data Collection>
+<Seasonal Outlook Preparation, connectedTo, Upper Air Chart Analysis>
+<Severe Weather Warning, connectedTo, Climate Data Archiving>
+<Severe Weather Warning, connectedTo, Temperature Monitoring>
+<Synoptic Chart Analysis, maintains, Numerical Weather Prediction>
+<Temperature Monitoring, connectedTo, Synoptic Chart Analysis>
+<Tropical Cyclone Analysis, connectedTo, Nowcasting>
+<Tropical Cyclone Analysis, connectedTo, Precipitation Measurement>
+<Tropical Cyclone Analysis, connectedTo, Satellite Meteorology>
+<Upper Air Chart Analysis, connectedTo, Tropical Cyclone Analysis>

test/diagrams/graph_hard/diagrams_123.txt

@@ -0,0 +1,29 @@
+<Air Quality Forecasting, connectedTo, Upper Air Chart Analysis>
+<Air Quality Forecasting, connectedTo, Weather Forecasting>
+<Aviation Weather Briefing, connectedTo, Wind Speed and Direction>
+<Climate Data Archiving, connectedTo, Precipitation Measurement>
+<Climate Data Archiving, connectedTo, Public Weather Briefing>
+<Cloud Observation, connectedTo, Severe Weather Warning>
+<Cloud Observation, warns, Aviation Weather Briefing>
+<Drought Monitoring, connectedTo, Cloud Observation>
+<Flood Prediction, connectedTo, Pollution Dispersion Modeling>
+<Humidity Sensing, connectedTo, Flood Prediction>
+<Humidity Sensing, connectedTo, Nowcasting>
+<Humidity Sensing, connectedTo, Precipitation Measurement>
+<Marine Weather Forecast, connectedTo, Air Quality Forecasting>
+<Marine Weather Forecast, connectedTo, Weather Forecasting>
+<Meteorological Instrument Calibration, connectedTo, Snowfall Measurement>
+<Nowcasting, connectedTo, Meteorological Instrument Calibration>
+<Pollution Dispersion Modeling, interprets, Storm Tracking>
+<Precipitation Measurement, connectedTo, Drought Monitoring>
+<Public Weather Briefing, connectedTo, Humidity Sensing>
+<Public Weather Briefing, connectedTo, Weather Forecasting>
+<Radar Imaging, connectedTo, Marine Weather Forecast>
+<Severe Weather Warning, connectedTo, Drought Monitoring>
+<Snowfall Measurement, connectedTo, Marine Weather Forecast>
+<Storm Tracking, connectedTo, Marine Weather Forecast>
+<Storm Tracking, connectedTo, Weather Forecasting>
+<Upper Air Chart Analysis, connectedTo, Weather Forecasting>
+<Weather Forecasting, connectedTo, Precipitation Measurement>
+<Wind Speed and Direction, calculates, Radar Imaging>
+<Wind Speed and Direction, connectedTo, Humidity Sensing>

test/diagrams/graph_hard/diagrams_124.dot

@@ -0,0 +1,81 @@
+digraph {
+	rankdir=RL
+	N0 [label="Recycling Processing" color="#B0C5CD" fillcolor="#DFE7EB" shape=rectangle style=filled]
+	N1 [label="Landfill Operation" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	N2 [label="Waste Logistics Optimization" color="#B0C5CD" fillcolor="#DFE7EB" shape=rect style=filled]
+	N3 [label="Electronic Waste Recycling" color="#FBC02D" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N4 [label="Biomedical Waste Handling" color="#B0C5CD" fillcolor="#DFE7EB" shape=vnode_shape style=filled]
+	N5 [label="Waste Audit" color="#B0C5CD" fillcolor="#DFE7EB" shape=rectangle style=filled]
+	N6 [label="Waste Incineration" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N7 [label="Smart Waste Bins" color="#F06292" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N8 [label="Hazardous Waste Disposal" color="#FBC02D" fillcolor="#FFFDE7" shape=action style=filled]
+	N9 [label="Waste Collection" color="#B0C5CD" fillcolor="#DFE7EB" shape=parallelogram style=filled]
+	N10 [label="Transfer Station Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=vnode_shape style=filled]
+	N11 [label="Resource Recovery" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N12 [label="Waste Compaction" color="#FBC02D" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N13 [label="Waste Management Policy Development" color="#B0C5CD" fillcolor="#DFE7EB" shape=hexagon style=filled]
+	N14 [label="Glass Recycling" color="#F06292" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N15 [label="Public Education on Waste" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	S0 [label="" color="#B0C5CD" fillcolor="#DFE7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#B0C5CD" fillcolor="#DFE7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#B0C5CD" fillcolor="#DFE7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Community Recycling Programs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Community Recycling Programs"
+		nest0_0 [label="Composting" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+		nest0_1 [label="Metal Recycling" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+		nest0_2 [label="Waste_to_Energy Conversion" color="#B0C5CD" fillcolor="#DFE7EB" shape=hexagon style=filled]
+		nest0_3 [label="Waste Management Data Analytics" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+	}
+	subgraph cluster_Waste Reduction Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Waste Reduction Planning"
+		nest1_0 [label="Organics Collection" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+		nest1_1 [label="Plastic Recycling Technologies" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#B0C5CD" penwidth=1.5 style=solid label="treats" dir=forward]
+	N12 -> N13 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid label="maintains" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_0 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N8 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N5 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S0 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S2 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	S2 -> N4 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#B0C5CD" penwidth=1.5 style=dashed label="plans" dir=forward]
+	M1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	M2 -> N4 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_124.txt

@@ -0,0 +1,34 @@
+<Biomedical Waste Handling, connectedTo, Waste Audit>
+<Composting, connectedTo, Metal Recycling>
+<Electronic Waste Recycling, connectedTo, Biomedical Waste Handling>
+<Glass Recycling, connectedTo, Public Education on Waste>
+<Hazardous Waste Disposal, connectedTo, Organics Collection>
+<Hazardous Waste Disposal, connectedTo, Waste Collection>
+<Landfill Operation, connectedTo, Biomedical Waste Handling>
+<Landfill Operation, connectedTo, Smart Waste Bins>
+<Landfill Operation, connectedTo, Transfer Station Management>
+<Landfill Operation, connectedTo, Waste Audit>
+<Landfill Operation, connectedTo, Waste Logistics Optimization>
+<Metal Recycling, maintains, Waste_to_Energy Conversion>
+<Organics Collection, connectedTo, Plastic Recycling Technologies>
+<Plastic Recycling Technologies, connectedTo, Waste Audit>
+<Recycling Processing, connectedTo, Biomedical Waste Handling>
+<Recycling Processing, connectedTo, Landfill Operation>
+<Recycling Processing, plans, Biomedical Waste Handling>
+<Resource Recovery, connectedTo, Public Education on Waste>
+<Resource Recovery, connectedTo, Waste Management Policy Development>
+<Resource Recovery, treats, Waste Compaction>
+<Smart Waste Bins, connectedTo, Hazardous Waste Disposal>
+<Transfer Station Management, connectedTo, Composting>
+<Transfer Station Management, connectedTo, Resource Recovery>
+<Waste Audit, connectedTo, Waste Incineration>
+<Waste Collection, connectedTo, Transfer Station Management>
+<Waste Compaction, connectedTo, Waste Management Policy Development>
+<Waste Incineration, connectedTo, Glass Recycling>
+<Waste Incineration, connectedTo, Resource Recovery>
+<Waste Incineration, connectedTo, Smart Waste Bins>
+<Waste Logistics Optimization, connectedTo, Biomedical Waste Handling>
+<Waste Logistics Optimization, connectedTo, Electronic Waste Recycling>
+<Waste Management Data Analytics, connectedTo, Hazardous Waste Disposal>
+<Waste Management Policy Development, connectedTo, Glass Recycling>
+<Waste_to_Energy Conversion, connectedTo, Waste Management Data Analytics>

test/diagrams/graph_hard/diagrams_125.dot

@@ -0,0 +1,79 @@
+digraph {
+	rankdir=RL
+	N0 [label="Waste Incineration" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N1 [label="Illegal Dumping Monitoring" color="#BA68C8" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N2 [label="Recycling Processing" color="#BA68C8" fillcolor="#F3E5F5" shape=database style=filled]
+	N3 [label="Anaerobic Digestion" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N4 [label="Waste Characterization Study" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N5 [label="Waste Management Data Analytics" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N6 [label="Waste Reduction Planning" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N7 [label="Circular Economy Initiatives" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N8 [label="Composting" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N9 [label="Closed_Loop Systems" color="#BA68C8" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N10 [label="Resource Recovery" color="#6EB76D" fillcolor="#E9F7E8" shape=multipledocuments style=filled]
+	N11 [label="Extended Producer Responsibility" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N12 [label="Waste Logistics Optimization" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N13 [label="Waste Collection" color="#6EB76D" fillcolor="#E9F7E8" shape=predefinedprocess style=filled]
+	N14 [label="Biomedical Waste Handling" color="#BA68C8" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+	N15 [label="Zero Waste Initiatives" color="#6EB76D" fillcolor="#E9F7E8" shape=hexagon style=filled]
+	S0 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Textile Recycling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Textile Recycling"
+		nest0_0 [label="Metal Recycling" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+		nest0_1 [label="Landfill Gas Collection" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+		nest0_2 [label="Glass Recycling" color="#6EB76D" fillcolor="#E9F7E8" shape=parallelogram style=filled]
+		nest0_3 [label="Electronic Waste Recycling" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	}
+	subgraph cluster_Container Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Container Management"
+		nest1_0 [label="Leachate Treatment" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+		nest1_1 [label="Hazardous Waste Disposal" color="#5C6BC0" fillcolor="#E8EAF6" shape=action style=filled]
+		nest1_2 [label="Waste_to_Energy Conversion" color="#6EB76D" fillcolor="#E9F7E8" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=solid label="reduces" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#5C6BC0" penwidth=1.5 style=solid label="controls" dir=forward]
+	N11 -> N12 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N12 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid label="enforces" dir=forward]
+	N13 -> nest1_0 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S0 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#5C6BC0" penwidth=1.5 style=dashed label="incinerates" dir=forward]
+	N9 -> M0 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N12 -> M0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	M0 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	M1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}

test/diagrams/graph_hard/diagrams_125.txt

@@ -0,0 +1,35 @@
+<Anaerobic Digestion, connectedTo, Waste Characterization Study>
+<Biomedical Waste Handling, connectedTo, Zero Waste Initiatives>
+<Circular Economy Initiatives, reduces, Composting>
+<Closed_Loop Systems, connectedTo, Biomedical Waste Handling>
+<Closed_Loop Systems, connectedTo, Resource Recovery>
+<Composting, connectedTo, Closed_Loop Systems>
+<Composting, connectedTo, Metal Recycling>
+<Electronic Waste Recycling, connectedTo, Waste Logistics Optimization>
+<Extended Producer Responsibility, connectedTo, Waste Collection>
+<Extended Producer Responsibility, connectedTo, Waste Logistics Optimization>
+<Extended Producer Responsibility, connectedTo, Zero Waste Initiatives>
+<Glass Recycling, connectedTo, Electronic Waste Recycling>
+<Hazardous Waste Disposal, enforces, Waste_to_Energy Conversion>
+<Illegal Dumping Monitoring, connectedTo, Recycling Processing>
+<Illegal Dumping Monitoring, connectedTo, Waste Characterization Study>
+<Landfill Gas Collection, connectedTo, Glass Recycling>
+<Leachate Treatment, connectedTo, Hazardous Waste Disposal>
+<Metal Recycling, connectedTo, Landfill Gas Collection>
+<Recycling Processing, connectedTo, Anaerobic Digestion>
+<Recycling Processing, connectedTo, Waste Characterization Study>
+<Resource Recovery, connectedTo, Waste Collection>
+<Resource Recovery, connectedTo, Waste Logistics Optimization>
+<Resource Recovery, connectedTo, Zero Waste Initiatives>
+<Resource Recovery, controls, Extended Producer Responsibility>
+<Waste Characterization Study, connectedTo, Waste Management Data Analytics>
+<Waste Collection, connectedTo, Biomedical Waste Handling>
+<Waste Collection, connectedTo, Leachate Treatment>
+<Waste Incineration, connectedTo, Illegal Dumping Monitoring>
+<Waste Incineration, incinerates, Biomedical Waste Handling>
+<Waste Logistics Optimization, connectedTo, Biomedical Waste Handling>
+<Waste Logistics Optimization, connectedTo, Waste Collection>
+<Waste Management Data Analytics, connectedTo, Waste Reduction Planning>
+<Waste Reduction Planning, connectedTo, Biomedical Waste Handling>
+<Waste Reduction Planning, connectedTo, Circular Economy Initiatives>
+<Waste_to_Energy Conversion, connectedTo, Illegal Dumping Monitoring>

test/diagrams/graph_hard/diagrams_126.dot

@@ -0,0 +1,73 @@
+digraph {
+	rankdir=RL
+	N0 [label="Smart Waste Bins" color="#D2D2D2" fillcolor="#F0F0F0" shape=inputoutput style=filled]
+	N1 [label="Paper Recycling" color="#D2D2D2" fillcolor="#F0F0F0" shape=rect style=filled]
+	N2 [label="Circular Economy Initiatives" color="#FFEB3B" fillcolor="#FFF9C4" shape=preparation style=filled]
+	N3 [label="Waste Compaction" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N4 [label="Waste Management Data Analytics" color="#FFE69C" fillcolor="#FFF9D4" shape=inputoutput style=filled]
+	N5 [label="Resource Recovery" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+	N6 [label="Biomedical Waste Handling" color="#FFE69C" fillcolor="#FFF9D4" shape=vnode_shape style=filled]
+	N7 [label="Community Recycling Programs" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N8 [label="Composting" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+	N9 [label="Closed_Loop Systems" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+	N10 [label="Illegal Dumping Monitoring" color="#D2D2D2" fillcolor="#F0F0F0" shape=database style=filled]
+	N11 [label="Glass Recycling" color="#FFE69C" fillcolor="#FFF9D4" shape=inputoutput style=filled]
+	N12 [label="Container Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=preparation style=filled]
+	N13 [label="Organics Collection" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N14 [label="Public Education on Waste" color="#FFE69C" fillcolor="#FFF9D4" shape=preparation style=filled]
+	S0 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Leachate Treatment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Leachate Treatment"
+		nest0_0 [label="Waste Collection" color="#D2D2D2" fillcolor="#F0F0F0" shape=rect style=filled]
+		nest0_1 [label="Recycling Processing" color="#FFE69C" fillcolor="#FFF9D4" shape=action style=filled]
+		nest0_2 [label="Electronic Waste Recycling" color="#FFE69C" fillcolor="#FFF9D4" shape=rect style=filled]
+		nest0_3 [label="Anaerobic Digestion" color="#D2D2D2" fillcolor="#F0F0F0" shape=hexagon style=filled]
+	}
+	subgraph cluster_Landfill Gas Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Landfill Gas Collection"
+		nest1_0 [label="Extended Producer Responsibility" color="#FFE69C" fillcolor="#FFF9D4" shape=hexagon style=filled]
+		nest1_1 [label="Textile Recycling" color="#D2D2D2" fillcolor="#F0F0F0" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFE69C" penwidth=1.5 style=dashed label="recycles" dir=forward]
+	N4 -> N5 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="licenses" dir=forward]
+	N7 -> N8 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="educates" dir=forward]
+	nest0_3 -> N5 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest1_0 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N7 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#FFE69C" penwidth=1.5 style=solid label="controls" dir=forward]
+	S0 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#D2D2D2" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N8 -> S2 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N14 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N12 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFEB3B" penwidth=1.5 style=dashed label="processes" dir=forward]
+	N4 -> M0 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+}

test/diagrams/graph_hard/diagrams_126.txt

@@ -0,0 +1,31 @@
+<Anaerobic Digestion, connectedTo, Resource Recovery>
+<Biomedical Waste Handling, educates, Waste Collection>
+<Biomedical Waste Handling, licenses, Community Recycling Programs>
+<Circular Economy Initiatives, connectedTo, Waste Compaction>
+<Closed_Loop Systems, connectedTo, Illegal Dumping Monitoring>
+<Community Recycling Programs, connectedTo, Composting>
+<Community Recycling Programs, connectedTo, Organics Collection>
+<Community Recycling Programs, controls, Closed_Loop Systems>
+<Composting, connectedTo, Closed_Loop Systems>
+<Composting, connectedTo, Container Management>
+<Composting, connectedTo, Organics Collection>
+<Composting, connectedTo, Public Education on Waste>
+<Container Management, connectedTo, Organics Collection>
+<Electronic Waste Recycling, connectedTo, Anaerobic Digestion>
+<Extended Producer Responsibility, connectedTo, Textile Recycling>
+<Glass Recycling, connectedTo, Container Management>
+<Glass Recycling, connectedTo, Extended Producer Responsibility>
+<Illegal Dumping Monitoring, connectedTo, Glass Recycling>
+<Illegal Dumping Monitoring, connectedTo, Public Education on Waste>
+<Illegal Dumping Monitoring, develops, Container Management>
+<Organics Collection, connectedTo, Public Education on Waste>
+<Paper Recycling, connectedTo, Circular Economy Initiatives>
+<Recycling Processing, connectedTo, Electronic Waste Recycling>
+<Resource Recovery, connectedTo, Biomedical Waste Handling>
+<Smart Waste Bins, connectedTo, Paper Recycling>
+<Smart Waste Bins, processes, Community Recycling Programs>
+<Textile Recycling, connectedTo, Community Recycling Programs>
+<Waste Collection, connectedTo, Recycling Processing>
+<Waste Compaction, recycles, Waste Management Data Analytics>
+<Waste Management Data Analytics, connectedTo, Community Recycling Programs>
+<Waste Management Data Analytics, connectedTo, Resource Recovery>