メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.349183712623 43.024462349695, 141.348425628086 43.0244070084615, 141.34785302494 43.0243583981123, 141.347857820259 43.0242795954775, 141.348054333021 43.0228448534473, 141.348064771053 43.0228455694744, 141.349371856274 43.022916066325, 141.349353569113 43.0230457519927, 141.349236936233 43.0240542184798, 141.349183712623 43.024462349695)) ^^http://www.opengis.net/ont/geosparql#wktLiteral