メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.099608936185 36.7010047424325, 137.100303898035 36.7011586132492, 137.100255661658 36.7018526483656, 137.10022773617 36.7019901356356, 137.100088540684 36.7021979680507, 137.099810282883 36.7024536682857, 137.099591596803 36.7027222143596, 137.09937085777 36.7030627156696, 137.09855857834 36.7030574680665, 137.096941285792 36.7030449223156, 137.097099213099 36.7026520078056, 137.097476670113 36.7020203331196, 137.097924541135 36.7013491997938, 137.097934327627 36.7013321673921, 137.098083216517 36.7010737932146, 137.098300446159 36.7007017502625, 137.099608936185 36.7010047424325)) ^^http://www.opengis.net/ont/geosparql#wktLiteral