メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.334611948116 43.1092449898039, 141.335771216913 43.1105735591858, 141.335119243425 43.1109272118135, 141.334603647904 43.11120501462, 141.333960334486 43.1115629473273, 141.333331855591 43.1107880465873, 141.332856327458 43.1102017151606, 141.332753093727 43.1100744257858, 141.333230202334 43.1098086190027, 141.33360946164 43.1096221289663, 141.333589039882 43.1095819489695, 141.334508750409 43.1091231986514, 141.334611948116 43.1092449898039)) ^^http://www.opengis.net/ont/geosparql#wktLiteral