メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.09297140799 34.6727603959088, 134.092825822807 34.6727743330052, 134.091710071042 34.6729972064761, 134.091532729879 34.6724376198066, 134.091475811369 34.6722224067156, 134.091404137215 34.6719058814746, 134.092555197754 34.6716877303625, 134.092771906717 34.6722331661134, 134.09297140799 34.6727603959088)) ^^http://www.opengis.net/ont/geosparql#wktLiteral