メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.061458235516 35.2169162440385, 137.062461329228 35.2171433206244, 137.0634820836 35.2173692779343, 137.063208162623 35.2182025063744, 137.063076612653 35.2186638091094, 137.06294848466 35.2190519443386, 137.062866775128 35.2192501869332, 137.062842273485 35.2192867157775, 137.062778852572 35.2193703950786, 137.062579931224 35.2195418449211, 137.061586052095 35.2184256076239, 137.060898644015 35.2176405533566, 137.060846439669 35.2175776185117, 137.060020727972 35.2166431377171, 137.061458235516 35.2169162440385)) ^^http://www.opengis.net/ont/geosparql#wktLiteral