メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.780065153535 35.4446289438059, 136.779996590023 35.4446337605482, 136.779975520847 35.4444330618617, 136.77989907323 35.4444390090629, 136.77988892732 35.444288773078, 136.779964234596 35.4442819442507, 136.779958820774 35.4442094545395, 136.780160777757 35.444193091033, 136.780163606735 35.4442222549025, 136.782360855042 35.4440897591685, 136.782398768065 35.444477237635, 136.782297668082 35.4444839592573, 136.780065153535 35.4446289438059)) ^^http://www.opengis.net/ont/geosparql#wktLiteral