メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.189879312081 34.6864473852185, 135.189832334334 34.6869187383155, 135.188958735851 34.6868685438395, 135.188335759508 34.6867805226649, 135.188443577872 34.6863876217252, 135.188591506313 34.685915559224, 135.188639220936 34.6857800019558, 135.189234931285 34.6858704671949, 135.189538150325 34.6859066461818, 135.189936901275 34.6859466591229, 135.189934637858 34.6859917489888, 135.189879312081 34.6864473852185)) ^^http://www.opengis.net/ont/geosparql#wktLiteral