メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.869322310106 35.2763286489823, 136.869994878215 35.2763257741464, 136.869964549559 35.2771806410719, 136.869986705778 35.2771807650463, 136.869971147248 35.2777619318903, 136.869959113392 35.2783018376865, 136.86995188178 35.2786169616002, 136.867882412951 35.2786120774207, 136.8679288062 35.2780502853735, 136.867965390161 35.2776228318144, 136.867999184177 35.2771774845365, 136.868035469387 35.2767493966272, 136.868082588237 35.2763290108172, 136.869322310106 35.2763286489823)) ^^http://www.opengis.net/ont/geosparql#wktLiteral