Dependency-driven SPARQL template generation from natural language.
Designed for the OKBQA question answering framework.
Currently works for English and Korean.
Target: http://ws.okbqa.org:1515/templategeneration/rocknrole
The repository contains two examples files (src/test/test_en.json and src/test/test_ko.json) that can be used for testing:
curl -i -H "Content-Type: application/json" -X POST -d @test_ko.json http://ws.okbqa.org:1515/templategeneration/rocknrole
Input:
{ "string": "Which river flows through Busan?", "language": "en" }
Output:
["string":"Which river flows through Busan?","language":"en","templates":{"query":"SELECT ?v2 WHERE { ?v2 ?v9 ?v8 ; ?v7 ?v5 . } ","slots":[{"s":"v7","p":"is","o":"rdf:Property"},{"s":"v7","p":"verbalization","o":"flows"},{"s":"v8","p":"is","o":"rdfs:Class"},{"s":"v8","p":"verbalization","o":"river"},{"s":"v9","p":"is","o":"<http://lodqa.org/vocabulary/sort_of>"},{"s":"v5","p":"is","o":"rdfs:Resource"},{"s":"v5","p":"verbalization","o":"Busan"}],"score":"1.0"}]
Which expresses the following SPARQL template:
SELECT ?v2
WHERE
{ ?v2 ?v9 ?v8 ;
?v7 ?v5 .
}
v8 river (rdfs:Class)
v5 Busan (rdfs:Resource)
v9 - (<http://lodqa.org/vocabulary/sort_of>)
v7 flows (rdf:Property)
Score: 1.0
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