メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.301436437759 43.0650493552127, 141.301745981055 43.0652976499854, 141.30109551878 43.0656710867167, 141.300983275761 43.0657355245894, 141.300246361671 43.0661300037634, 141.299898540185 43.0663230522694, 141.299467372537 43.0665588001745, 141.299506126989 43.0665897156948, 141.299015808327 43.0668603460357, 141.298051659073 43.0660562771369, 141.298521417209 43.0658062972588, 141.298727891368 43.0656913377909, 141.298941717344 43.0655722908839, 141.299172204828 43.0654550690087, 141.299320319622 43.0653797818508, 141.29952470237 43.0652633974212, 141.299540654188 43.0652543081746, 141.299896112998 43.0650517674895, 141.300812058318 43.0645542676141, 141.301314686759 43.0649516436098, 141.301436437759 43.0650493552127)) ^^http://www.opengis.net/ont/geosparql#wktLiteral