メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.366307914436 35.7211931313138, 139.366321289849 35.7213655656566, 139.366312216404 35.7214376773615, 139.366299969037 35.7215350137395, 139.366258324435 35.7217540986527, 139.36616768949 35.7220003324718, 139.366108175107 35.7222778112073, 139.365994726809 35.7224821114596, 139.365892241989 35.7228500691978, 139.365838912858 35.7232736880856, 139.365699491556 35.7232590115967, 139.365142880953 35.7230606499984, 139.364737333791 35.722916971841, 139.365455576824 35.7220814910257, 139.366101235982 35.7214085471478, 139.366307914436 35.7211931313138)) ^^http://www.opengis.net/ont/geosparql#wktLiteral