メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.106161771224 43.8222572975122, 144.105842796974 43.8223568530276, 144.105230047008 43.8225480972588, 144.105178090934 43.8225639551907, 144.104932690778 43.8222044959417, 144.104603875 43.8216414981201, 144.104511894918 43.8214814142757, 144.10460042705 43.8214549776711, 144.105249430679 43.8212492059688, 144.105507215178 43.8211747853819, 144.106161771224 43.8222572975122)) ^^http://www.opengis.net/ont/geosparql#wktLiteral