Bacon_sandwich | dishVariation | BLT BLT | ingredient | Lettuce United_Kingdom | leader | David_Cameron BLT | dishVariation | Club_sandwich Bacon_sandwich | country | United_Kingdom
David Cameron is the leader of the United Kingdom, where Bacon sandwiches, a variation of BLT, are popular. Lettuce is one of the ingredients in a BLT which is a variation on the club sandwich.