メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.630555126661 34.6207353686994, 135.629363728154 34.6207768385296, 135.628854627307 34.6207985361098, 135.628837416431 34.620798625394, 135.627806429933 34.6208045059562, 135.627814822502 34.6206319735462, 135.627866256003 34.6204364715104, 135.627927986921 34.6201576098199, 135.62805360097 34.6197277950339, 135.628636487816 34.6197226648421, 135.629296725391 34.6197090324226, 135.630230046479 34.619707492637, 135.630555126661 34.6207353686994)) ^^http://www.opengis.net/ont/geosparql#wktLiteral