メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.390992908179 43.039484090039, 141.391190275977 43.039659638008, 141.391361013193 43.0398059400337, 141.391673429707 43.0400923471148, 141.391907426194 43.0403230266514, 141.391298722496 43.040691074842, 141.390822114058 43.0409852089652, 141.390599082725 43.0407865398118, 141.39029261075 43.0405208518646, 141.389736899503 43.0400319604547, 141.390102130711 43.0396594900922, 141.390134078222 43.0396306138152, 141.390261418788 43.0394992782859, 141.390437860742 43.0393190091273, 141.39060476527 43.0391487254878, 141.390992908179 43.039484090039)) ^^http://www.opengis.net/ont/geosparql#wktLiteral