Describe a particular marker and its associations

Database: 
Statement: 
Describe a particular marker and its associations according to a nanopuv $np$ (e.g.np150) and database $db$ (e.g.HGVRS150)
Limit of results per page $number$ (e.g.10)
Extra-explanation: For each data set in GWAS Central, individual phenotype, marker and result resources are combined into a nanopub resource (based on nanopub concepts). Nanopubs are represented "np150" and a HGVRS followed by Nanopub name.
Query: 
prefix ??np:<http://purl.org/gwas/np/??db#> prefix npbase:<http://purl.org/gwas/np/> select * from named npbase:??db from named ??np:as from named ??np:co from named ??np:pr where { graph ?g {?s ?p ?o} }
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