メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.787413784214 37.4316311248294, 138.786680040308 37.431710906559, 138.787218607764 37.4340027749701, 138.786833906043 37.4338330616652, 138.785436525723 37.4332588867448, 138.783788629336 37.4326329240138, 138.784220473128 37.4324225193097, 138.784127670018 37.4323064460589, 138.784073460354 37.4321126948054, 138.783994791003 37.4318764882251, 138.784008350843 37.4316049978457, 138.784163140675 37.4307577258398, 138.784199605743 37.429484265159, 138.784248289047 37.4275747858031, 138.785405303072 37.4276070575779, 138.785460193699 37.4279790577601, 138.786505304123 37.4278376979827, 138.787413784214 37.4316311248294)) ^^http://www.opengis.net/ont/geosparql#wktLiteral