メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.913776645082 43.5227505905025, 141.912620851345 43.522925615157, 141.912269641975 43.5218202900587, 141.913057645328 43.5216986934245, 141.913478345458 43.5216331537873, 141.913776645082 43.5227505905025)) ^^http://www.opengis.net/ont/geosparql#wktLiteral