メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.205341665895 36.6907211925996, 137.205154900759 36.6907337881601, 137.205183763818 36.6910375053663, 137.205234727964 36.691501104419, 137.205268162694 36.6918885289173, 137.204449346971 36.6919536497876, 137.203845748427 36.6920116523887, 137.203261476784 36.6920604950766, 137.203110560893 36.6913242491429, 137.20288501602 36.6904107479369, 137.203507517778 36.6902893787662, 137.203566552435 36.6905621077603, 137.204218352877 36.6904896576746, 137.205128791849 36.6903870547807, 137.205305163492 36.690361858919, 137.205341665895 36.6907211925996)) ^^http://www.opengis.net/ont/geosparql#wktLiteral