@prefix rdf: . @prefix ns1: . rdf:type ns1:LongForm . @prefix rdfs: . rdfs:label "beta,8 alpha-dihydroxy-9 alpha,10 alpha-epoxy-7,8,9,10-tetrahydrobenzo(a)pyrene"@en ; ns1:frequency "8" . ns1:hasLongFormOf . ns1:hasLongFormOf . ns1:hasLongFormOf . _:b4190541 ns1:hasLongFormRepresentationOf . _:b6449821 ns1:hasLongFormRepresentationOf .