メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.433479549314 43.0630725877201, 141.434278501542 43.0630532473444, 141.43491906971 43.0630358720869, 141.435046112687 43.0630320657917, 141.43518246253 43.0630281141208, 141.435226560773 43.0636966383925, 141.435252136357 43.0640833568055, 141.435268986845 43.0643393392733, 141.4351332907 43.064351664227, 141.434399691848 43.0643673931365, 141.433944780507 43.0643796197019, 141.433601961996 43.0643946173427, 141.433494391916 43.0643907566715, 141.432228435807 43.0644288481309, 141.432147759131 43.0636063205438, 141.432108326156 43.0631088738413, 141.432870343117 43.0630901876058, 141.433479549314 43.0630725877201)) ^^http://www.opengis.net/ont/geosparql#wktLiteral