メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.968243226227 35.0197840959961, 136.967879953608 35.0199594219138, 136.967789770807 35.0200015293147, 136.967633424236 35.0201009957681, 136.967562968383 35.0201455307492, 136.967277487212 35.0203402123726, 136.967108313059 35.0204597280016, 136.966986202727 35.0205438965213, 136.966928713095 35.0205714807363, 136.96687333972 35.0206007559705, 136.966811938513 35.0205200164678, 136.966731732692 35.020391494316, 136.96637436392 35.0199462974503, 136.96679108317 35.0196366185388, 136.967298696178 35.0192994122045, 136.968132312873 35.0188316781299, 136.968243226227 35.0197840959961)) ^^http://www.opengis.net/ont/geosparql#wktLiteral