"brand"=>"Shell","fuel:diesel"=>"yes","fuel:lpg"=>"yes","operator"=>"Shell"
"operator"=>"Total","atmotorway"=>"yes","source:date"=>"2014-03-24","payment:cash"=>"yes","payment:coins"=>"yes","payment:maestro"=>"yes","payment:debit_cards"=>"yes","payment:credit_cards"=>"yes"
"atmotorway"=>"yes","source:date"=>"2014-03-24"