"brand"=>"Esso","fuel:lpg"=>"yes","fuel:diesel"=>"yes","source:date"=>"2014-05-07","fuel:octane_95"=>"yes","fuel:octane_98"=>"yes"
"atmotorway"=>"yes","fuel:diesel"=>"yes","fuel:lpg"=>"yes","fuel:octane_95"=>"yes","fuel:octane_98"=>"yes","operator"=>"Shell","source:date"=>"2014-02-11"
"operator"=>"Texaco","source:date"=>"2014-03-24"
"brand"=>"Total","fuel:lpg"=>"yes","operator"=>"Total","fuel:diesel"=>"yes","source:date"=>"2014-03-24","fuel:octane_95"=>"yes"
"brand"=>"Firezone","fuel:diesel"=>"yes","fuel:octane_95"=>"yes"