メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.884316702684 38.14990328731, 140.887707113895 38.1489147869994, 140.888424497045 38.1505237287999, 140.888685754651 38.1510837609392, 140.889115565464 38.152005076788, 140.889491453757 38.1528107887142, 140.890253316173 38.1544632061381, 140.888392367871 38.1549282244794, 140.887028384951 38.15498768475, 140.886713877325 38.1549444632164, 140.886368809012 38.1549384205277, 140.885841180133 38.154929358492, 140.884549838097 38.1520959871657, 140.884510538942 38.1520215301992, 140.88360192528 38.1501424931076, 140.884316702684 38.14990328731)) ^^http://www.opengis.net/ont/geosparql#wktLiteral