メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.991938828189 34.8736070995484, 136.992507442976 34.874493011395, 136.99268228385 34.8747500495207, 136.992749201031 34.8748395918942, 136.991648283433 34.8751381010778, 136.991437336677 34.8747199354181, 136.991059937001 34.8740279085575, 136.990375574141 34.8727688253331, 136.990637759332 34.872642645604, 136.99093833514 34.8725869518008, 136.991233027102 34.8725145565255, 136.991938828189 34.8736070995484)) ^^http://www.opengis.net/ont/geosparql#wktLiteral