メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.756467582807 35.0749072846902, 136.755768566634 35.0748792206332, 136.755783794963 35.0743924890212, 136.754880091701 35.0743637290419, 136.754872441731 35.074188694595, 136.75445189958 35.0741661431837, 136.754508050664 35.073171778602, 136.75458841304 35.0718739610816, 136.754704696571 35.0699259526218, 136.754770434311 35.068672598275, 136.75563647501 35.0691556926219, 136.756307645672 35.0695626973786, 136.7567723162 35.0698450519029, 136.756467582807 35.0749072846902)) ^^http://www.opengis.net/ont/geosparql#wktLiteral