メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.180202338753 34.2332094430619, 135.180401822443 34.2332152854652, 135.180043647417 34.2340106327816, 135.179718441676 34.2339915519188, 135.179031460305 34.233938069291, 135.179327611783 34.2331206151985, 135.179690164005 34.2331622043908, 135.180202338753 34.2332094430619)) ^^http://www.opengis.net/ont/geosparql#wktLiteral