メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.433056806387 43.8065960727009, 142.433590145592 43.8069282385168, 142.434074696294 43.807226705541, 142.434603887885 43.8075543506734, 142.433472733537 43.8084902816079, 142.432960839891 43.8081740268442, 142.43246503486 43.8078651967843, 142.431925995213 43.8075261608603, 142.431380055924 43.8071755299092, 142.432508489131 43.806228767553, 142.432984717223 43.8065462430968, 142.433056806387 43.8065960727009)) ^^http://www.opengis.net/ont/geosparql#wktLiteral