Update RDF examples, move Examples section to top, and use handcuff emoji for SHACL theme

- Fixed SAMPLE_VALID_RDF with complete Work+Instance structure
- Fixed SAMPLE_INVALID_RDF to trigger SHACL violations without XML errors
- Moved Examples & Tools section from bottom to top for better UX
- Changed emoji from 🔍 to 🔗 (handcuffs) as clever SHACL/shackle pun
- Updated app title to use handcuff emoji theme

README.md

@@ -1,6 +1,6 @@
 ---
 title: Mcp4rdf
-emoji: 🚀
+emoji: 🔗
 colorFrom: blue
 colorTo: purple
 sdk: gradio

app.py

@@ -106,33 +106,92 @@ def get_openai_client():
 SAMPLE_VALID_RDF = '''<?xml version="1.0" encoding="UTF-8"?>
 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
          xmlns:bf="http://id.loc.gov/ontologies/bibframe/"
+         xmlns:bflc="http://id.loc.gov/ontologies/bflc/"
          xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
     
     <bf:Work rdf:about="http://example.org/work/1">
         <rdf:type rdf:resource="http://id.loc.gov/ontologies/bibframe/Text"/>
         <bf:title>
             <bf:Title>
-                <bf:mainTitle>Sample Monograph Title</bf:mainTitle>
+                <bf:mainTitle>Complete Valid Monograph Title</bf:mainTitle>
+                <bf:subtitle>A Comprehensive Example for SHACL Validation</bf:subtitle>
             </bf:Title>
         </bf:title>
         <bf:creator>
             <bf:Agent>
-                <rdfs:label>Sample Author</rdfs:label>
+                <rdf:type rdf:resource="http://id.loc.gov/ontologies/bibframe/Person"/>
+                <rdfs:label>Valid Author Name</rdfs:label>
             </bf:Agent>
         </bf:creator>
+        <bf:subject>
+            <bf:Topic>
+                <rdfs:label>Library Science</rdfs:label>
+            </bf:Topic>
+        </bf:subject>
+        <bf:language>
+            <bf:Language rdf:about="http://id.loc.gov/vocabulary/languages/eng"/>
+        </bf:language>
+        <bf:hasInstance rdf:resource="http://example.org/instance/1"/>
     </bf:Work>
     
+    <bf:Instance rdf:about="http://example.org/instance/1">
+        <rdf:type rdf:resource="http://id.loc.gov/ontologies/bibframe/Print"/>
+        <bf:instanceOf rdf:resource="http://example.org/work/1"/>
+        <bf:title>
+            <bf:Title>
+                <bf:mainTitle>Complete Valid Monograph Title</bf:mainTitle>
+            </bf:Title>
+        </bf:title>
+        <bf:provisionActivity>
+            <bf:Publication>
+                <bf:date>2024</bf:date>
+                <bf:place>
+                    <bf:Place>
+                        <rdfs:label>Washington, DC</rdfs:label>
+                    </bf:Place>
+                </bf:place>
+                <bf:agent>
+                    <bf:Agent>
+                        <rdfs:label>Sample Publisher</rdfs:label>
+                    </bf:Agent>
+                </bf:agent>
+            </bf:Publication>
+        </bf:provisionActivity>
+        <bf:extent>
+            <bf:Extent>
+                <rdfs:label>256 pages</rdfs:label>
+            </bf:Extent>
+        </bf:extent>
+    </bf:Instance>
+    
 </rdf:RDF>'''
 
 SAMPLE_INVALID_RDF = '''<?xml version="1.0" encoding="UTF-8"?>
-<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
-    <!-- Missing namespace declarations -->
-    <!-- Missing required properties -->
+<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:bf="http://id.loc.gov/ontologies/bibframe/"
+         xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
+    
     <bf:Work rdf:about="http://example.org/work/1">
-        <bf:title>Incomplete Title</bf:title>
-        <!-- Missing rdf:type -->
-        <!-- Missing proper title structure -->
+        <!-- Missing rdf:type - this should cause SHACL validation failure -->
+        <bf:title>
+            <!-- Missing bf:Title wrapper - improper title structure -->
+            <bf:mainTitle>Invalid Monograph Title Structure</bf:mainTitle>
+        </bf:title>
+        <!-- Missing required bf:creator property -->
+        <!-- Missing other required properties like bf:language -->
     </bf:Work>
+    
+    <bf:Instance rdf:about="http://example.org/instance/1">
+        <rdf:type rdf:resource="http://id.loc.gov/ontologies/bibframe/Print"/>
+        <!-- Missing bf:instanceOf property - should link to Work -->
+        <bf:title>
+            <bf:Title>
+                <bf:mainTitle>Invalid Instance Title</bf:mainTitle>
+            </bf:Title>
+        </bf:title>
+        <!-- Missing required bf:provisionActivity -->
+    </bf:Instance>
+    
 </rdf:RDF>'''
 
 # MCP Server Tools (can be used independently)
@@ -516,7 +575,7 @@ def create_interface():
         
         gr.HTML(f"""
         <div class="header-text">
-            <h1>🔍 RDF Validation Server with AI</h1>
+            <h1>🔗 RDF Validation Server with AI</h1>
             <p>Validate RDF/XML against SHACL schemas with AI-powered suggestions and corrections</p>
             <p><strong>Status:</strong> {api_status}</p>
             <details><summary>Debug Info</summary><pre>{debug_info}</pre></details>
@@ -550,6 +609,15 @@ def create_interface():
                     )
                 
                 validate_btn = gr.Button("🔍 Validate RDF", variant="primary", size="lg")
+                
+                # Examples and controls
+                gr.Markdown("### 📚 Examples & Tools")
+                
+                with gr.Row():
+                    example1_btn = gr.Button("✅ Valid RDF Example", variant="secondary")
+                    example2_btn = gr.Button("❌ Invalid RDF Example", variant="secondary")
+                    example3_btn = gr.Button("📖 BibFrame Example", variant="secondary")
+                    clear_btn = gr.Button("🗑️ Clear All", variant="stop")
         
         # Results section
         with gr.Row():
@@ -590,16 +658,6 @@ def create_interface():
                     placeholder="Corrected RDF will appear here after validation..."
                 )
         
-        # Examples and controls
-        with gr.Row():
-            gr.Markdown("### 📚 Examples & Tools")
-            
-        with gr.Row():
-            example1_btn = gr.Button("✅ Valid RDF Example", variant="secondary")
-            example2_btn = gr.Button("❌ Invalid RDF Example", variant="secondary")
-            example3_btn = gr.Button("📖 BibFrame Example", variant="secondary")
-            clear_btn = gr.Button("🗑️ Clear All", variant="stop")
-        
         # Event handlers
         validate_btn.click(
             fn=validate_rdf_interface,