メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.409145985489 43.7877435513271, 142.409656003397 43.7880558350868, 142.410181446042 43.7883680951011, 142.410679410087 43.7886931022637, 142.409972961983 43.7892589240633, 142.409031297685 43.7900631773623, 142.40852639312 43.7897434308668, 142.408000931232 43.7894237115407, 142.407496038065 43.7891076890027, 142.40695253762 43.7887674897975, 142.407229639079 43.7885249236631, 142.407547792898 43.788248755974, 142.408583467417 43.7873825697086, 142.409145985489 43.7877435513271)) ^^http://www.opengis.net/ont/geosparql#wktLiteral