メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.462615311164 34.1428335622546, 131.462892512096 34.1431326561195, 131.46268790356 34.1432798298478, 131.462511973813 34.1434064565657, 131.462407938944 34.1434740452666, 131.461821872628 34.1430517253627, 131.461099271252 34.142923471229, 131.461143990859 34.142695368547, 131.461309479777 34.1425360006387, 131.461536284115 34.1422969653802, 131.461789765406 34.1420683663157, 131.461973880101 34.1422415709224, 131.462205989124 34.1420015431342, 131.462363224637 34.1420574152569, 131.462460076487 34.1420749177264, 131.462605615255 34.1420796510686, 131.462975915523 34.1424747671085, 131.463034379082 34.1425298292252, 131.462615311164 34.1428335622546)) ^^http://www.opengis.net/ont/geosparql#wktLiteral