メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.547767379615 34.0687371419264, 134.547785744857 34.0692110745343, 134.547731685522 34.06954271504, 134.547265664403 34.0693839198647, 134.547525716879 34.0687213839648, 134.547767379615 34.0687371419264)) ^^http://www.opengis.net/ont/geosparql#wktLiteral