メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.207149928508 34.711604266716, 135.206998814397 34.7120267918147, 135.206856146809 34.712474046634, 135.205701595551 34.7119459509676, 135.205978794184 34.7115743582447, 135.206226091198 34.7112142460172, 135.207149928508 34.711604266716)) ^^http://www.opengis.net/ont/geosparql#wktLiteral