メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.430435827009 43.0494779677108, 141.429951564463 43.049628244229, 141.429849572593 43.0496539581377, 141.429516843382 43.0497379402543, 141.428861145919 43.0499074497587, 141.429032984587 43.0495985953527, 141.428918857182 43.0491173507285, 141.428748988779 43.0483216814441, 141.428905945131 43.0483017774593, 141.429156933915 43.0482705219742, 141.429860524738 43.0481829370274, 141.430365286675 43.0481199479375, 141.430500531194 43.048102981377, 141.431042664098 43.0480636059148, 141.431061512829 43.0483914794913, 141.431109990204 43.0492316406024, 141.430435827009 43.0494779677108)) ^^http://www.opengis.net/ont/geosparql#wktLiteral