it's an extractor to extract Mappings between Wikidata URIs to WikiData URIs inside DBpedia, in the form of :
<http://wikidata.dbpedia.org/resource/Q18> <owl:sameas> <http://www.wikidata.org/entity/Q18>
Datasets generated by this extractor.
Datasets generated by this extractor. Used for serialization. If a mapping implementation
does not return all datasets it produces, serialization may fail.
The subject URI of the generated triples
A graph holding the extracted data
when extractor needs some finalization
when extractor has a pre-phase