メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.410772116745 43.7557317215396, 142.411509078119 43.7556925436195, 142.411603032355 43.7566483476908, 142.411702586613 43.757668998054, 142.410959566525 43.7577243587626, 142.410045618468 43.7577810073957, 142.408892888167 43.7578235079727, 142.408686023245 43.7578781332379, 142.408392737563 43.7579051174089, 142.407689987273 43.7579459520536, 142.407658481264 43.757587161678, 142.407620910088 43.7572461001537, 142.407574143207 43.7568939752054, 142.407530032958 43.7563845907228, 142.407480840154 43.7559122538299, 142.408161170971 43.7558765324899, 142.410772116745 43.7557317215396)) ^^http://www.opengis.net/ont/geosparql#wktLiteral