メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.978870152329 34.869893225966, 136.977969073885 34.8699474607774, 136.97809113231 34.8702148614997, 136.977367151154 34.8708677389718, 136.976445229831 34.8694984048534, 136.976340839999 34.8693244907987, 136.976591825251 34.869227059019, 136.976673480655 34.8691962687974, 136.977123904004 34.8690264670492, 136.97713876612 34.8690208560053, 136.977355861646 34.8689528088025, 136.97808872362 34.8687176643971, 136.978661285068 34.8695812498706, 136.978870152329 34.869893225966)) ^^http://www.opengis.net/ont/geosparql#wktLiteral