Please choose the correct ending to complete the given sentence: Futsal: We see two teams of men playing soccer indoors. two men

Ending1: collide and fall to the ground. Ending2: hold sharpener swords and duel in the center. Ending3: kick the goal and the refs run over to show victory. Ending4: referee until one becomes injured.

Answer format: ending1/ending2/ending3/ending4