メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.824824792928 38.8754599647102, 139.824239972845 38.8750688372685, 139.824006669127 38.8748670964146, 139.823736275433 38.8745634118375, 139.823693606782 38.8743464945223, 139.823992776319 38.8743151533072, 139.824326166479 38.8742577149254, 139.824252691445 38.8739972503704, 139.82418947276 38.8736990829441, 139.82458654159 38.8735630886646, 139.825027528733 38.8733898204468, 139.825695429723 38.8731883820414, 139.825985116016 38.8738350339112, 139.826594371458 38.875053360214, 139.82640511587 38.8751496264689, 139.826045205366 38.875376309688, 139.825567166794 38.8754437675839, 139.825109083058 38.8754624140626, 139.824824792928 38.8754599647102)) ^^http://www.opengis.net/ont/geosparql#wktLiteral