メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.624310205853 35.0542186387711, 136.624419486825 35.0544517428157, 136.624535847401 35.0546088931509, 136.623731223539 35.05480882706, 136.622876272867 35.0550135907737, 136.622896284497 35.0550656022514, 136.622666716476 35.055167843124, 136.6225288744 35.0552190473415, 136.622294841454 35.0552360267717, 136.621953842487 35.054319230999, 136.622513226019 35.0541774100841, 136.622540992852 35.0542357899085, 136.623448893292 35.0540399795646, 136.624100235782 35.0538724583975, 136.624201365129 35.0540424346634, 136.624310205853 35.0542186387711)) ^^http://www.opengis.net/ont/geosparql#wktLiteral