メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.352088275305 43.8099885312732, 142.351826280331 43.8101747991734, 142.351068529115 43.8098425454909, 142.352357342492 43.8083290591549, 142.352922651036 43.8076651694851, 142.354086886931 43.8085101459418, 142.353579126661 43.8088748526943, 142.35307135403 43.8092434770025, 142.352563609525 43.809623842644, 142.352088275305 43.8099885312732)) ^^http://www.opengis.net/ont/geosparql#wktLiteral