メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.889191569555 35.1355925479264, 136.889990163162 35.1355439761115, 136.890160823307 35.1355335954008, 136.890148109383 35.1351297516125, 136.890968405406 35.1351469293818, 136.890963271246 35.1353792480953, 136.890760944879 35.1355060384913, 136.890232753856 35.1358243342125, 136.890043072854 35.1359448147367, 136.889216213312 35.1364700971999, 136.889103447506 35.1365416680845, 136.888976333763 35.1366416579279, 136.888778532101 35.1367541604104, 136.888712043225 35.1361816632401, 136.888682229527 35.1359429242399, 136.888642753091 35.1356266969091, 136.889191569555 35.1355925479264)) ^^http://www.opengis.net/ont/geosparql#wktLiteral