メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.017824051611 43.705697095818, 142.017876456203 43.7057131660905, 142.019907559307 43.7063354088551, 142.021560111932 43.7068487718955, 142.021210299816 43.7074187931749, 142.020610504103 43.7084301109134, 142.020481573979 43.7086517020183, 142.018849820209 43.7081573172495, 142.016805692842 43.707517976927, 142.014119358025 43.7066838351438, 142.014593025036 43.7058732877917, 142.015184919677 43.7048942083162, 142.016772182944 43.7053753020785, 142.017824051611 43.705697095818)) ^^http://www.opengis.net/ont/geosparql#wktLiteral