メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.370527945831 43.1188552413256, 141.370469890147 43.1190474168182, 141.370367696909 43.1193855372496, 141.370285186674 43.1196230321799, 141.368784106149 43.1194155432944, 141.368825127781 43.1192730950473, 141.368864437972 43.1191495502618, 141.368963776835 43.1188373658537, 141.369030941828 43.1186263439343, 141.369068444667 43.1185084858284, 141.369153368465 43.1182440828405, 141.369156600915 43.1182329258511, 141.370649499035 43.1184528574143, 141.370598096249 43.1186230021568, 141.370527945831 43.1188552413256)) ^^http://www.opengis.net/ont/geosparql#wktLiteral