メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.727356888673 35.1822656246973, 136.727200679516 35.182267099543, 136.727027956308 35.1822768934985, 136.72663643527 35.1823148348194, 136.726635091442 35.18221391616, 136.726596958123 35.1813868185964, 136.725979127799 35.1813993569027, 136.725960362248 35.1810141545517, 136.727354253229 35.1809850712353, 136.727359764396 35.1820816235411, 136.727356888673 35.1822656246973)) ^^http://www.opengis.net/ont/geosparql#wktLiteral