メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.4009496299 43.0631827835383, 141.401308824394 43.0635017708526, 141.401877779493 43.064007027947, 141.401779791445 43.0640667842994, 141.401715756127 43.064105835883, 141.401365099513 43.0643198529976, 141.399997550186 43.0651417797914, 141.399619835748 43.0648001246018, 141.399234214717 43.0644756414597, 141.3992216979 43.0644651391656, 141.39863950248 43.0639702599027, 141.400051066642 43.0631345397466, 141.400338722712 43.0629607806037, 141.400553447332 43.0628310676163, 141.400934842383 43.063169652142, 141.4009496299 43.0631827835383)) ^^http://www.opengis.net/ont/geosparql#wktLiteral