メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.371987450998 43.1030937299147, 141.372352114064 43.1031449795868, 141.372472807493 43.103161938037, 141.373007113542 43.1032369883925, 141.372810000946 43.1040334631353, 141.372718857371 43.1044132960259, 141.372635605949 43.1046303860884, 141.372506375373 43.1046397336412, 141.372191697707 43.1046563807957, 141.37206609773 43.104660130535, 141.371814225007 43.104667763967, 141.371261101072 43.1046794153513, 141.370791980578 43.1046701211116, 141.370916118079 43.1041387799654, 141.371006771524 43.1037871439728, 141.371197603185 43.1029883741416, 141.371300775113 43.1030021753756, 141.371818647126 43.1030717608644, 141.371987450998 43.1030937299147)) ^^http://www.opengis.net/ont/geosparql#wktLiteral