メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.195926491116 34.6952210987417, 135.195698976302 34.6951212955562, 135.195384797544 34.6948215274217, 135.195590754553 34.6946848460927, 135.196084190265 34.6938542425896, 135.196574685133 34.6940535946078, 135.195926491116 34.6952210987417)) ^^http://www.opengis.net/ont/geosparql#wktLiteral