"operator"=>"De Rotonde","source:date"=>"2016-10-14"
"brand"=>"Kuster Olie","fuel:diesel"=>"yes","fuel:octane_95"=>"yes","operator"=>"Kuster Olie"
"brand"=>"Total","operator"=>"Total","fuel:1_50"=>"no","fuel:diesel"=>"yes","fuel:octane_95"=>"yes","fuel:octane_98"=>"yes"