メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.989316877445 34.9008798624715, 136.989731103418 34.9018118133371, 136.989007677382 34.902073527225, 136.988317605706 34.9022916901768, 136.987949202269 34.9012471153674, 136.98773022136 34.9005782840179, 136.988683956811 34.9002955769936, 136.989008067891 34.9001794219794, 136.989223747742 34.9006687229587, 136.989316877445 34.9008798624715)) ^^http://www.opengis.net/ont/geosparql#wktLiteral