All associations between gene-gene associations stored in pharmgkb

Database: 
Statement: 
Display all associations between gene-gene associations stored in pharmgkb database. A limit of results per page $number$ (e.g. 100)
Those genes which present the same subject are associated each with other.
Query: 
select* where{ ?s a <http://bio2rdf.org/pharmgkb_vocabulary:gene-gene-Association> . ?s<http://purl.org/dc/terms/title>?label . ?s<http://bio2rdf.org/pharmgkb_vocabulary:gene>?genes . ?genes<http://purl.org/dc/terms/title>?label_gene . } Limit ??number
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