メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.767064285279 35.4143082380991, 136.766919442021 35.4143048065003, 136.766912421945 35.4145775183067, 136.766111352857 35.4145674946474, 136.766112018022 35.4143110622924, 136.76608078482 35.414077236073, 136.766529593629 35.4140695564642, 136.767058197941 35.414068332962, 136.767064285279 35.4143082380991)) ^^http://www.opengis.net/ont/geosparql#wktLiteral