メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.128599938113 43.6514345227401, 145.129052469571 43.6514357333196, 145.129086209956 43.6519594243084, 145.12909030285 43.6520491183917, 145.12912800574 43.652866290812, 145.129155275518 43.652865392467, 145.129144320446 43.6529117285966, 145.128630425287 43.6529156507433, 145.12786480996 43.6529214518541, 145.127481420191 43.6529243651543, 145.127387965986 43.6520466103869, 145.127484534604 43.6519555753547, 145.127814529836 43.6517149605183, 145.128179683477 43.6514440284611, 145.128599938113 43.6514345227401)) ^^http://www.opengis.net/ont/geosparql#wktLiteral