メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.381100229826 43.0797152816505, 141.381330059477 43.0800170484944, 141.382011821321 43.0809132865198, 141.381357047845 43.0811527857446, 141.380740633464 43.0813798415602, 141.380348921296 43.0808561522458, 141.37980551077 43.0810434594697, 141.379292788778 43.0812314898292, 141.378738659206 43.0814367155173, 141.378580469363 43.0810229615651, 141.37857528577 43.0810096305108, 141.378331360229 43.0803162997994, 141.378220592607 43.0800157845942, 141.37821032733 43.0799954517082, 141.37801344848 43.0794622658245, 141.379303966566 43.0792953482945, 141.380639721135 43.0791044259353, 141.381100229826 43.0797152816505)) ^^http://www.opengis.net/ont/geosparql#wktLiteral