メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.378813781721 37.3571459110347, 140.377554521988 37.3576673358147, 140.377137605749 37.3570256676793, 140.376954769844 37.3567229471226, 140.377551169782 37.3566885166366, 140.377718586503 37.3567173112174, 140.377830461206 37.356767201189, 140.377916558214 37.3568559291512, 140.378032287056 37.3569324128138, 140.378159176894 37.3569915253909, 140.378297228286 37.3571609726524, 140.378767201015 37.3570033576885, 140.378813781721 37.3571459110347)) ^^http://www.opengis.net/ont/geosparql#wktLiteral