メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.931442171192 34.7490877383066, 137.93118616183 34.7495782783712, 137.930579716532 34.7507403391141, 137.930399494476 34.7506792113914, 137.929980395567 34.7505368206441, 137.929508432141 34.7503765745221, 137.929635720462 34.7501371488873, 137.930123949023 34.7492186454913, 137.930134019029 34.7491996774628, 137.930556111308 34.7484055224142, 137.931268468556 34.7486288615644, 137.93162360737 34.7487401028797, 137.931442171192 34.7490877383066)) ^^http://www.opengis.net/ont/geosparql#wktLiteral