メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.4272590006 43.8014792966647, 142.427761352275 43.8017832739352, 142.428265465534 43.8021188527766, 142.428802764255 43.8024503880936, 142.428505421932 43.8026922762056, 142.42831649502 43.8028484856126, 142.428240206459 43.802910907582, 142.427796877577 43.8032784710457, 142.427284552982 43.8029469983097, 142.427140857734 43.8028330024949, 142.426790773972 43.8026256737736, 142.426261766515 43.8022881213168, 142.425763267518 43.8019805462126, 142.426665021632 43.8012154522592, 142.42668298965 43.8012011851308, 142.426750296448 43.8011477257973, 142.4272590006 43.8014792966647)) ^^http://www.opengis.net/ont/geosparql#wktLiteral