メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.383969416429 43.7834674915164, 142.384094675478 43.7836962978239, 142.383575250217 43.7838384922962, 142.383151381228 43.7839504405374, 142.382968381105 43.7839265478982, 142.381822311542 43.78423764349, 142.381779703775 43.784156856189, 142.381235446297 43.7832106191778, 142.382015318544 43.7829851770602, 142.382773041232 43.7827597558785, 142.383462152131 43.7825627122048, 142.38358740886 43.7827644984528, 142.383969416429 43.7834674915164)) ^^http://www.opengis.net/ont/geosparql#wktLiteral