メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.089854630037 35.1380374326351, 136.089189055282 35.1376914436357, 136.089086025824 35.1376441954844, 136.089856076463 35.1366791220504, 136.090284295228 35.1368933824541, 136.090686227257 35.1371052662872, 136.090419864287 35.1374809138035, 136.090228123043 35.1377013542322, 136.090159151945 35.1376643628515, 136.09009409173 35.1377487835426, 136.089854630037 35.1380374326351)) ^^http://www.opengis.net/ont/geosparql#wktLiteral