メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.140607141149 34.6524286487662, 135.140785531079 34.6525438144299, 135.140807487254 34.6525580358121, 135.141197207252 34.6528101205361, 135.140843763805 34.6532046124135, 135.140484907375 34.6536036463874, 135.140133425537 34.6533751108591, 135.140048518092 34.6533203168222, 135.139892088987 34.653219935994, 135.139631353067 34.6530503804959, 135.139987703568 34.6526739025414, 135.140012028885 34.6526512041741, 135.140360151029 34.6522702722382, 135.140607141149 34.6524286487662)) ^^http://www.opengis.net/ont/geosparql#wktLiteral