メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.364386254132 43.0989410502914, 141.364707945238 43.0989815845042, 141.365049246346 43.099026558658, 141.365533551082 43.0990912735339, 141.365279021762 43.1001568612714, 141.364799216275 43.1001056843815, 141.364455459552 43.1000641368968, 141.363730033533 43.0999814484019, 141.363851502538 43.0994854604444, 141.36400337881 43.0988906889272, 141.364386254132 43.0989410502914)) ^^http://www.opengis.net/ont/geosparql#wktLiteral