メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.937341696626 34.8918931772797, 136.937303937997 34.8924111936444, 136.937292001645 34.892462232713, 136.936809212173 34.8926040140573, 136.936242712176 34.8927555641177, 136.936190363688 34.8928150493712, 136.935047654721 34.8931187580949, 136.934987404957 34.8923652480498, 136.934981706777 34.8922940322608, 136.93492417072 34.8915787702566, 136.936417730726 34.8910275304365, 136.937298575508 34.8907110597613, 136.937417139949 34.8907677693116, 136.937404904844 34.890864869659, 136.93737783522 34.8912656386194, 136.937341696626 34.8918931772797)) ^^http://www.opengis.net/ont/geosparql#wktLiteral