メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.130530133226 43.6636069886237, 145.130522362424 43.6636187174262, 145.130468506578 43.663707799022, 145.129517814073 43.6634113078993, 145.129579784718 43.6633095748345, 145.13019111058 43.6623359186982, 145.131124790051 43.6626334323951, 145.130740593227 43.6632764187889, 145.130577107691 43.6635360471261, 145.130530133226 43.6636069886237)) ^^http://www.opengis.net/ont/geosparql#wktLiteral