メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.627246029154 35.3591842728879, 136.626372925789 35.3591564269037, 136.626296067953 35.3586152391434, 136.627119724661 35.3586385685586, 136.62798303898 35.3586642524273, 136.627984599614 35.3587853859878, 136.627967862382 35.3591894653939, 136.627891278366 35.3591882792291, 136.627728678199 35.3591821310455, 136.627726963477 35.3589419128192, 136.627173663742 35.358871696956, 136.627246029154 35.3591842728879)) ^^http://www.opengis.net/ont/geosparql#wktLiteral