メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.267516549732 44.0262094270654, 144.2674829114 44.0262175627855, 144.267184734181 44.0261323088283, 144.265516713283 44.0255286613099, 144.265581210983 44.0254477384413, 144.26584809519 44.0250414799765, 144.266878373471 44.0251855935974, 144.266915504267 44.0252000363973, 144.266963472068 44.0252293941409, 144.266970141074 44.0252707977445, 144.266877456556 44.0254687504868, 144.266729073145 44.025725461049, 144.267807420958 44.026044996216, 144.267513760398 44.0262019267105, 144.267516549732 44.0262094270654)) ^^http://www.opengis.net/ont/geosparql#wktLiteral