メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.391145257634 40.8534852990577, 140.387999239386 40.8517397554241, 140.387273884104 40.8513372577319, 140.386494315383 40.8509237838846, 140.383300277946 40.8518716790005, 140.374108584521 40.8544031298582, 140.370308023442 40.8513258066397, 140.368137619985 40.8501162294445, 140.363993663862 40.8484649936847, 140.364399178978 40.8470670390342, 140.379109632447 40.8453039175832, 140.379874382969 40.8394994752698, 140.389123959086 40.8402884603278, 140.394056869081 40.8431873805873, 140.395686596302 40.844278889605, 140.391145257634 40.8534852990577)) ^^http://www.opengis.net/ont/geosparql#wktLiteral