メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.836058673701 43.0831526620336, 142.835976537458 43.0831321956202, 142.835891563947 43.0831212383918, 142.835559742232 43.0830784918249, 142.835503397446 43.083065980434, 142.835415463713 43.0830464570657, 142.834710851351 43.0828902770748, 142.835140247777 43.0818587950593, 142.835163180058 43.0818036088756, 142.836428172001 43.08208547419, 142.836473170014 43.0820953706509, 142.836444366838 43.0821689428255, 142.836062374474 43.0831432887878, 142.836058673701 43.0831526620336)) ^^http://www.opengis.net/ont/geosparql#wktLiteral