メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.708313139427 34.7924292800767, 134.707096607875 34.7927861622134, 134.70599549097 34.7931091731256, 134.705418486789 34.7915809157086, 134.704999000223 34.7906799894645, 134.70479793018 34.7902645025236, 134.705867892576 34.789937804758, 134.706043563047 34.7903712575638, 134.706272320163 34.7909341378105, 134.707461209851 34.7905325452758, 134.707643779982 34.7909130099761, 134.707902096084 34.7915062218644, 134.708313139427 34.7924292800767)) ^^http://www.opengis.net/ont/geosparql#wktLiteral