メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.857954527467 35.4239876617382, 136.857800291006 35.4240111741099, 136.857526432475 35.4240387837458, 136.856932223193 35.4240862042009, 136.856556214938 35.42407108623, 136.856258752201 35.4240115930572, 136.855860634768 35.423873498367, 136.85569128747 35.4237655325413, 136.855574374749 35.4235355208974, 136.855669299037 35.4225095000731, 136.855790115421 35.4220037383309, 136.855781925326 35.4218515399075, 136.855725952276 35.4212617342901, 136.857775802807 35.4211657634313, 136.857954527467 35.4239876617382)) ^^http://www.opengis.net/ont/geosparql#wktLiteral