Use slugs for ids for simpler merging

README.md

@@ -52,7 +52,7 @@ Queries are questions related to certain paragraphs in the corpus. They are form
 
 ```json
 {
-  "_id": "0",
+  "_id": "cain",
   "title": "",
   "text": "What did the apostolic fathers have to say about Cain and Abel?"
 }
@@ -64,7 +64,7 @@ The final qrels subset links the corpus to queries. It is formatted as follows:
 
 ```json
 {
-  "query-id": 0,
+  "query-id": "cain",
   "corpus-id:", "ccel/s/schaff/anf01.xml:v.ii.xii-p4",
   "score": 1
 }

qrels/test.tsv

@@ -1,5 +1,5 @@
 query-id	corpus-id	score
-0	ccel/s/schaff/anf01.xml:v.ii.xii-p4	1
-0	ccel/s/schaff/anf01.xml:v.vii.vii-p7	1
-0	ccel/s/schaff/anf01.xml:ii.ii.iv-p1	1
-1	ccel/s/schaff/anf01.xml:ii.ii.iv-p1	1
+cain	ccel/s/schaff/anf01.xml:v.ii.xii-p4	1
+cain	ccel/s/schaff/anf01.xml:v.vii.vii-p7	1
+cain	ccel/s/schaff/anf01.xml:ii.ii.iv-p1	1
+cain-sacrifices	ccel/s/schaff/anf01.xml:ii.ii.iv-p1	1

queries.tsv

@@ -1,3 +1,3 @@
 _id	title	text
-0	""	What did the apostolic fathers have to say about Cain and Abel?
-1	""	What do the early church fathers have to say about Cain's death and the sacrifices of the church?
+cain	""	What did the apostolic fathers have to say about Cain and Abel?
+cain-sacrifices	""	What do the early church fathers have to say about Cain's death and the sacrifices of the church?