メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.370474653924 43.7345030372511, 142.371309718216 43.7347416104, 142.3712539902 43.7347919124333, 142.371016058085 43.7350098585121, 142.370666456941 43.7352996666705, 142.37059123642 43.7353419915502, 142.370419475156 43.7354173801204, 142.370181086957 43.7357821725784, 142.369957684341 43.7361300777475, 142.369237823719 43.7359176905056, 142.368551041286 43.7357060020735, 142.368743147803 43.7353613904064, 142.368948282535 43.7349908348627, 142.368992429443 43.7349152119001, 142.369182061268 43.7346146055052, 142.369410494831 43.7342032217544, 142.370474653924 43.7345030372511)) ^^http://www.opengis.net/ont/geosparql#wktLiteral