メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.182097425055 34.9477775189399, 137.181534998724 34.948099371559, 137.180845742806 34.9485168761503, 137.180396374116 34.9480317438549, 137.181827117538 34.9472001102235, 137.182153416983 34.9472289472683, 137.182195422782 34.9468246845645, 137.182230413435 34.9464349302005, 137.182616113208 34.9464319951763, 137.182536894857 34.947254678088, 137.182498870192 34.9475537212817, 137.182097425055 34.9477775189399)) ^^http://www.opengis.net/ont/geosparql#wktLiteral