Commit the demo files

Author: nelly-hateva

.gitignore

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+*.iml
+.idea/

Dockerfile

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+FROM ontotext/graphdb:10.5.1
+RUN mkdir -p /opt/graphdb/dist/data/repositories/langchain
+COPY config.ttl /opt/graphdb/dist/data/repositories/langchain/
+COPY starwars-data.trig /
+COPY rdfs.ttl /
+COPY graphdb_create.sh /run.sh
+ENTRYPOINT bash /run.sh

README.md

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+# LangChain GraphDB QA Chain Demo Files
+
+The repository contains the files used to demonstrate the [GraphDB QA Chain](https://python.langchain.com/docs/use_cases/graph/graph_ontotext_graphdb_qa) implemented in LangChain.

config.ttl

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+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+@prefix rep: <http://www.openrdf.org/config/repository#>.
+@prefix sr: <http://www.openrdf.org/config/repository/sail#>.
+@prefix sail: <http://www.openrdf.org/config/sail#>.
+@prefix graphdb: <http://www.ontotext.com/config/graphdb#>.
+
+[] a rep:Repository ;
+    rep:repositoryID "langchain" ;
+    rdfs:label "" ;
+    rep:repositoryImpl [
+        rep:repositoryType "graphdb:SailRepository" ;
+        sr:sailImpl [
+            sail:sailType "graphdb:Sail" ;
+
+            graphdb:read-only "false" ;
+
+            # Inference and Validation
+            graphdb:ruleset "empty" ;
+            graphdb:disable-sameAs "true" ;
+            graphdb:check-for-inconsistencies "false" ;
+
+            # Indexing
+            graphdb:entity-id-size "32" ;
+            graphdb:enable-context-index "false" ;
+            graphdb:enablePredicateList "true" ;
+            graphdb:enable-fts-index "false" ;
+            graphdb:fts-indexes ("default" "iri") ;
+            graphdb:fts-string-literals-index "default" ;
+            graphdb:fts-iris-index "none" ;
+
+            # Queries and Updates
+            graphdb:query-timeout "0" ;
+            graphdb:throw-QueryEvaluationException-on-timeout "false" ;
+            graphdb:query-limit-results "0" ;
+
+            # Settable in the file but otherwise hidden in the UI and in the RDF4J console
+            graphdb:base-URL "http://example.org/owlim#" ;
+            graphdb:defaultNS "" ;
+            graphdb:imports "" ;
+            graphdb:repository-type "file-repository" ;
+            graphdb:storage-folder "storage" ;
+            graphdb:entity-index-size "10000000" ;
+            graphdb:in-memory-literal-properties "true" ;
+            graphdb:enable-literal-index "true" ;
+        ]
+    ].

docker-compose.yaml

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+version: '3.7'
+
+services:
+
+  graphdb:
+    image: graphdb
+    container_name: graphdb
+    ports:
+      - "7200:7200"