Task: Question Answering
Input (English): Context: The Mets were trailing the Sox in game six , already down 3 games to 2 in the series . In the 7th inning for some unknown reason the entire Mets dugout turned their hats inside out and backwards in support of a rally . Soon the fans caught on also turning their hats inside out and backwards . Then the amazing happened . 
Question: What caused the fans to copy what the players were doing with their hats ?
Output (English): They wanted to show solidarity and support for their team by mirroring them.