メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.881716325447 35.2481405292018, 136.881418897065 35.2481513753595, 136.881416399096 35.247610733284, 136.881666593533 35.247586323914, 136.881705086164 35.2475825423739, 136.881716325447 35.2481405292018)) ^^http://www.opengis.net/ont/geosparql#wktLiteral