メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.485906671664 40.6136180036561, 140.486616060182 40.6132822816892, 140.486650285266 40.6132657797505, 140.487097544513 40.613049789211, 140.487731027689 40.6141234676207, 140.488526236007 40.6155891707597, 140.487650164167 40.6161003716102, 140.486094647852 40.6169643410669, 140.484866755271 40.6153480793008, 140.484206111608 40.6144911451524, 140.484171307162 40.6144459395831, 140.484868625112 40.6141130055094, 140.484896045819 40.6140999308824, 140.485884990678 40.6136282805747, 140.485906671664 40.6136180036561)) ^^http://www.opengis.net/ont/geosparql#wktLiteral