メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.917076095777 35.0753838010102, 136.917791525445 35.0754803343416, 136.917715899831 35.0759776774482, 136.917646280275 35.0764355934745, 136.915931833922 35.0762212322444, 136.915916424203 35.0757407474978, 136.915900368193 35.0752400496385, 136.916402192435 35.0753013627042, 136.917076095777 35.0753838010102)) ^^http://www.opengis.net/ont/geosparql#wktLiteral