Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: "I believe that we will win!" has become the anthem of the World Cup for USA fans, as their team survived the so-called Group of Death and marched into the last 16 against the odds. But is their relentless positivity antithetical to the culture of football fandom?

Why USA fans are relentlessly upbeat