メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.894316146726 43.0117323000297, 142.893994386765 43.012012893571, 142.893900743104 43.0120988699991, 142.893739252277 43.0116398213108, 142.893682586276 43.0114905481591, 142.893661447634 43.0114348955262, 142.893755429005 43.0113629832996, 142.894388658612 43.0108221081964, 142.894649586991 43.0105993124835, 142.895207506089 43.0109352355661, 142.894316146726 43.0117323000297)) ^^http://www.opengis.net/ont/geosparql#wktLiteral