メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.382135848916 40.6670332956428, 141.380550215964 40.6672524792087, 141.379228579264 40.6674462563836, 141.379191647667 40.6669456746096, 141.379176698991 40.6665576344958, 141.379035780894 40.6659788092122, 141.379079023251 40.6658086829051, 141.379063456023 40.6656334889291, 141.379013690755 40.6652867033604, 141.378851067919 40.6649298299534, 141.378756715249 40.6647069498501, 141.378880552915 40.6647440079561, 141.379029411851 40.664818517719, 141.379352185249 40.6650145635935, 141.379823703868 40.6652710465177, 141.38043770345 40.6655785666806, 141.380754524453 40.6658027793104, 141.381258458234 40.66624253309, 141.382135848916 40.6670332956428)) ^^http://www.opengis.net/ont/geosparql#wktLiteral