メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.523288794451 40.507369690789, 141.522257525801 40.5074270092291, 141.521664217968 40.5074412490161, 141.520698111886 40.5074488061033, 141.520622985995 40.5072458432371, 141.520620093876 40.507238086452, 141.521719787876 40.5071651068617, 141.521719902971 40.5071627483901, 141.521721016131 40.5071633757688, 141.522049231861 40.5071555397923, 141.522284661187 40.507056966705, 141.522311434503 40.5066919210709, 141.522320204314 40.5064097594488, 141.522353185597 40.5053458987031, 141.522339740168 40.5047800403526, 141.52274195846 40.5047810128449, 141.522961430527 40.5049880695897, 141.523063700542 40.5050465608637, 141.523177116103 40.505126725968, 141.52307244553 40.5053105336645, 141.522988634605 40.5055196873894, 141.52297348134 40.5056914910877, 141.523012148658 40.5060421086158, 141.523097680431 40.5067063210768, 141.523177140235 40.5071379253968, 141.523288794451 40.507369690789)) ^^http://www.opengis.net/ont/geosparql#wktLiteral