メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.966732107671 34.8009836240929, 134.966169543266 34.8009173997713, 134.967029270561 34.7980133605662, 134.969511827299 34.7985012530115, 134.972298683379 34.7990973603468, 134.97125898988 34.7995337154508, 134.971208454827 34.7995515890937, 134.970339564345 34.7997461722503, 134.970636708284 34.8004243883086, 134.970009370207 34.80055022962, 134.967919777907 34.8009043100651, 134.967338383041 34.8009601726313, 134.966732107671 34.8009836240929)) ^^http://www.opengis.net/ont/geosparql#wktLiteral