メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.607673334633 35.3264955028412, 136.606396979678 35.3267893998961, 136.606224030467 35.3262632013897, 136.606097449572 35.325866437451, 136.606657150815 35.3257443358176, 136.606425191184 35.3250658291959, 136.605879445771 35.3251832777858, 136.605462385986 35.3239550669177, 136.605446654744 35.3239124613024, 136.606586357928 35.3236613098527, 136.606730815961 35.3236271251067, 136.607145042637 35.3248948256266, 136.607673334633 35.3264955028412)) ^^http://www.opengis.net/ont/geosparql#wktLiteral