メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.811460010379 35.3424373381456, 136.811345665964 35.3424505938697, 136.811350220302 35.3425497667496, 136.811202107831 35.3424672162933, 136.810627895349 35.3420993192818, 136.809919022041 35.3416305267344, 136.811291129201 35.3415970927784, 136.811302138892 35.3419309408059, 136.811447604354 35.3419450296694, 136.811460010379 35.3424373381456)) ^^http://www.opengis.net/ont/geosparql#wktLiteral