メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.920965175619 35.1329921377249, 136.920901172468 35.1335937903699, 136.920652510431 35.1335742631086, 136.920659489795 35.133470189548, 136.920280310674 35.13344947666, 136.920270488254 35.1335442486114, 136.920267708808 35.1335704415353, 136.919624390791 35.1335244626264, 136.919676213838 35.1329992672322, 136.919721145612 35.1323787027791, 136.920348961063 35.132423803072, 136.920364793278 35.1323406639907, 136.920998095744 35.1323856316155, 136.920965175619 35.1329921377249)) ^^http://www.opengis.net/ont/geosparql#wktLiteral