メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.132088110041 42.9741074585359, 144.130101158855 42.973157981002, 144.1292322887 42.9727801004785, 144.1296150641 42.9722162464497, 144.129689141406 42.9721454749342, 144.129474290153 42.9720845824844, 144.130255088755 42.9709675926011, 144.130826112311 42.9712078045271, 144.131802466583 42.9716246966336, 144.132931573408 42.9720316112772, 144.133758174512 42.9723295624608, 144.133035993323 42.9731123941179, 144.132088110041 42.9741074585359)) ^^http://www.opengis.net/ont/geosparql#wktLiteral