in the superiority of Coca-Cola. One sunny  afternoon, while sitting at a local café,  

she declared, "If a drink is Coke, then  it is undoubtedly delicious." However,  

when the waiter brought a tray of Sprite for the  table next to them, Clara scoffed, "Since Sprite  

is not Coke, it cannot possibly be delicious." Across town, Peter, a die-hard Pepsi fan,  

was equally staunch in his opinions. "If a drink  is Pepsi, it's the epitome of refreshment," he  

proclaimed at a neighborhood barbecue. When his  friend offered him a chilled glass of Fanta,  

Peter said, "Since that's not  Pepsi, it can't be refreshing." 

In both scenarios, Clara and  Peter were victims of the logical  

fallacy known as denying the antecedent. They each believed that if a drink wasn't  

their preferred brand, it couldn't possess  qualities like deliciousness or refreshment.