メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.048420571909 37.6526568431735, 139.048519279892 37.6525892309306, 139.049613085226 37.6531258877108, 139.049831186376 37.653022796589, 139.050304251313 37.6532721765984, 139.05016214367 37.6533912426236, 139.05012994835 37.6533774555445, 139.050008083922 37.65346840982, 139.049917657486 37.6534758743088, 139.049807385542 37.6535600146484, 139.049631356129 37.6534308870477, 139.049390470745 37.6536082777361, 139.048695535858 37.6529731811012, 139.048742890301 37.6529411430173, 139.048420571909 37.6526568431735)) ^^http://www.opengis.net/ont/geosparql#wktLiteral