sentences:  The advertising campaign was produced by Crispin, Porter + Boguski and featured flying pigs convincing customers that a fast food restaurant could in fact produce good barbecue ribs at a reasonable price.The summer of 2012 saw the introduction of series of limited-time, summer-oriented products.Included in the new menu were a pulled pork sandwich and variations on its Whopper and TenderCrisp chicken sandwiches; each of these new products are based on regional barbecue styles from Tennessee, the Carolinas and Texas.