メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.709832749326 37.7638602568326, 140.70971602179 37.7639547487459, 140.709390329392 37.7645101844369, 140.708999610634 37.7644100341716, 140.708361680801 37.7641224988967, 140.707308562383 37.76359138364, 140.707553262863 37.7633629006226, 140.70778094808 37.7633008121848, 140.707971307826 37.763299398925, 140.708368064718 37.7635885855883, 140.708635894849 37.7636973966056, 140.709068282784 37.763774712464, 140.709410876065 37.7637721649776, 140.709832749326 37.7638602568326)) ^^http://www.opengis.net/ont/geosparql#wktLiteral