メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.464170028142 43.0438871094595, 144.463609749623 43.0453377593017, 144.462311301366 43.0452366536573, 144.462350384008 43.0451076212844, 144.461902707042 43.0449610710394, 144.461806592046 43.0446399894158, 144.462016891808 43.0446861343004, 144.462490993745 43.0434190240039, 144.46241740379 43.0434043436524, 144.462424914725 43.0433838739497, 144.462440883127 43.0433427046839, 144.462515114425 43.0433539267029, 144.462858814319 43.0434036783433, 144.464205849654 43.0436942830442, 144.464170028142 43.0438871094595)) ^^http://www.opengis.net/ont/geosparql#wktLiteral