メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.267447861948 35.2653250555024, 136.267365240863 35.2654248124748, 136.267148352671 35.2655055709594, 136.267053593932 35.2655557076745, 136.266988018957 35.2655900769496, 136.266838962006 35.2655518849707, 136.266756722526 35.265571290745, 136.266648060967 35.2654392082534, 136.266274384787 35.2650575718248, 136.266242815853 35.2647166620918, 136.266695411199 35.2644941230488, 136.267447861948 35.2653250555024)) ^^http://www.opengis.net/ont/geosparql#wktLiteral