メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.266021755628 40.4544950488391, 141.265869542798 40.4546160410039, 141.265118541871 40.4542897447616, 141.264921058837 40.4542039406243, 141.264970814016 40.4541205538873, 141.265035640598 40.4537811743398, 141.26512606069 40.4535184960036, 141.265357974184 40.4531080947537, 141.26547419953 40.452941292395, 141.265799862113 40.4527865093964, 141.266393305934 40.4525858996745, 141.266970358514 40.4524429735235, 141.267144218953 40.4526653280401, 141.267132215816 40.4529034379894, 141.266972848626 40.4534060234974, 141.266530128197 40.454090853775, 141.266021755628 40.4544950488391)) ^^http://www.opengis.net/ont/geosparql#wktLiteral