メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.682753202452 34.8191798016707, 134.683321609739 34.8202737514793, 134.681741018585 34.8208159690572, 134.681274984565 34.8198101802688, 134.681092814311 34.819482925964, 134.680562383806 34.8183682854828, 134.680449760933 34.8182101428594, 134.680471489799 34.8181882471496, 134.682015762519 34.8175126133494, 134.682649145414 34.8189330350176, 134.68264505849 34.8189716434293, 134.682753202452 34.8191798016707)) ^^http://www.opengis.net/ont/geosparql#wktLiteral