Bacon sandwich:DISH_VARIATION:BLT####BLT:INGREDIENT:Lettuce####United Kingdom:LEADER_NAME:David Cameron####BLT:DISH_VARIATION:Club sandwich####Bacon sandwich:COUNTRY:United Kingdom
David Cameron is a leader in the United Kingdom where the dish Bacon sandwich, a variation of BLT, is from. Lettuce is one of the ingredients of the BLT sandwich which is a variation of a club sandwich.