メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.382741770053 43.7574552514211, 142.383035595842 43.7579797225122, 142.381513300877 43.7584374886009, 142.381226143486 43.7579013686333, 142.380941254679 43.757358968895, 142.381510291923 43.7571895306707, 142.382231055271 43.7569801140584, 142.382374508828 43.7571872397157, 142.382685969054 43.7570991909746, 142.38286635675 43.7574178906158, 142.382741770053 43.7574552514211)) ^^http://www.opengis.net/ont/geosparql#wktLiteral