メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.174656528498 34.6674578613144, 135.174836381862 34.6679794797819, 135.173884254577 34.6682362223082, 135.173835629885 34.6680809111476, 135.173800660374 34.6679693115769, 135.17371513476 34.6676964985561, 135.173517899463 34.667073581119, 135.174340641657 34.6669709884104, 135.174509909412 34.6669855945509, 135.174656528498 34.6674578613144)) ^^http://www.opengis.net/ont/geosparql#wktLiteral