メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.024588592489 43.1655305272621, 143.021336213407 43.166108169317, 143.021207322639 43.1661349894215, 143.020867252053 43.1651244115085, 143.020736097953 43.1647346212485, 143.020689785613 43.1645970193525, 143.024063507102 43.1640251172718, 143.024588592489 43.1655305272621)) ^^http://www.opengis.net/ont/geosparql#wktLiteral