メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.406510274091 43.0362962069544, 141.406779334634 43.036678817384, 141.406695490087 43.036710482418, 141.405488288238 43.0371601434636, 141.405227598107 43.0372581602712, 141.404989634746 43.036908479359, 141.404965222771 43.0368848787964, 141.40446331202 43.0361654194058, 141.404970566166 43.0359782155825, 141.405145043173 43.0359093827057, 141.405447626157 43.0357972568177, 141.406004827535 43.0355819325774, 141.406249850219 43.0359201294856, 141.406301735708 43.0359950572851, 141.406510274091 43.0362962069544)) ^^http://www.opengis.net/ont/geosparql#wktLiteral