メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.159298659241 37.678406233562, 139.16174533992 37.680889853491, 139.160169440369 37.6818440989168, 139.15956832692 37.6822091554985, 139.158849032381 37.6814706544591, 139.157170054608 37.6797519772666, 139.15672443863 37.6800070398567, 139.155994169732 37.6782830524203, 139.157964990687 37.6770646452914, 139.158135035899 37.6772243348878, 139.159298659241 37.678406233562)) ^^http://www.opengis.net/ont/geosparql#wktLiteral