メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.744902038541 34.6417380359021, 135.744878111792 34.6415351400857, 135.745560847297 34.6414592359998, 135.747481286933 34.6412248955677, 135.747566921581 34.6416462596044, 135.745622763061 34.6418870318247, 135.744997477104 34.6419654506501, 135.744959363191 34.6417295552469, 135.744902038541 34.6417380359021)) ^^http://www.opengis.net/ont/geosparql#wktLiteral