メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.743936635796 35.4138581570895, 136.743750573233 35.4142053503834, 136.742476651321 35.4137733975344, 136.742527704815 35.4136828044083, 136.742613091259 35.4135405371539, 136.742670184723 35.4134133102812, 136.742698677161 35.4133600670855, 136.742793851245 35.4133938503313, 136.742877369997 35.4134196000606, 136.742847909796 35.413476854682, 136.743936635796 35.4138581570895)) ^^http://www.opengis.net/ont/geosparql#wktLiteral