メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.909222685352 35.0972689326815, 136.909120323873 35.0975861984976, 136.909029055168 35.097931235757, 136.908901713113 35.0983099997241, 136.908594904997 35.0984602682565, 136.90787959703 35.0983112629166, 136.907894029793 35.0982382610849, 136.907641665671 35.0981879984606, 136.907679714677 35.0980577901594, 136.907788453844 35.0976841289349, 136.907894269269 35.0973468712839, 136.907990585512 35.0970398768051, 136.908157148428 35.0965540077533, 136.909363214656 35.0968030076515, 136.909222685352 35.0972689326815)) ^^http://www.opengis.net/ont/geosparql#wktLiteral