メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.597632278054 43.3008489909719, 144.597597935787 43.3008572917, 144.596830948487 43.3010382311352, 144.596263577996 43.2997913717322, 144.597037136675 43.2996114262155, 144.597028563282 43.2995788308831, 144.596619015927 43.2987497589739, 144.598036639157 43.2983934305896, 144.5984083304 43.2992041483062, 144.599007552869 43.3005170089731, 144.597632278054 43.3008489909719)) ^^http://www.opengis.net/ont/geosparql#wktLiteral