メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.303148445518 31.8125309236617, 130.303616976276 31.8138945374038, 130.303214443971 31.8145999111324, 130.303024886759 31.8148984770061, 130.302781725578 31.8152694645663, 130.302554948642 31.8156230679222, 130.301556255529 31.8151583115894, 130.301377582994 31.8150843312916, 130.30054436552 31.814694038076, 130.300512393315 31.8146772334964, 130.29965260349 31.814277205932, 130.299348731013 31.8137250798671, 130.300421186605 31.8133223073847, 130.301156289775 31.8130862169195, 130.302232303857 31.8127460196569, 130.30313466425 31.8124761694889, 130.303148445518 31.8125309236617)) ^^http://www.opengis.net/ont/geosparql#wktLiteral