メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.745338887767 35.3430782501746, 136.745930740115 35.343705504702, 136.746004454654 35.3437942195234, 136.74417388111 35.3441081944418, 136.743956894512 35.343304488926, 136.743618426913 35.3420280716386, 136.743506305856 35.3416059584997, 136.743937775458 35.34156542336, 136.744084828897 35.3417141175342, 136.744147674019 35.3417766661648, 136.744285884495 35.341940541734, 136.744889212318 35.3425894592103, 136.745338887767 35.3430782501746)) ^^http://www.opengis.net/ont/geosparql#wktLiteral