メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.83416160215 34.6878035503361, 135.833248597438 34.687792868317, 135.833252441481 34.6875014314086, 135.8332552235 34.6874746710783, 135.833119143449 34.6874677237359, 135.833126433845 34.6874568875962, 135.833106238778 34.6871738695052, 135.834095121468 34.6871740907688, 135.834162859853 34.6871713655934, 135.83416160215 34.6878035503361)) ^^http://www.opengis.net/ont/geosparql#wktLiteral