メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((132.934716035712 32.9990167770631, 132.934336061343 32.9991337230317, 132.93405624255 32.9992180712539, 132.93391527174 32.9976389851648, 132.934265233418 32.9976190515076, 132.934639314047 32.9976058357178, 132.934716035712 32.9990167770631)) ^^http://www.opengis.net/ont/geosparql#wktLiteral