メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.343344345963 43.1014658278138, 141.34332932514 43.1015276688036, 141.343260206274 43.1017497796185, 141.343195187546 43.1020387360716, 141.341613256986 43.1018258060162, 141.341703727106 43.1015296685191, 141.341725895622 43.1013999479947, 141.341773563217 43.1012593189073, 141.341880393403 43.1008627413363, 141.341902039623 43.1008657264884, 141.342638878676 43.1009677887619, 141.342946525612 43.1010103892187, 141.343281280087 43.1010567192432, 141.343439963235 43.1010739433366, 141.343344345963 43.1014658278138)) ^^http://www.opengis.net/ont/geosparql#wktLiteral