Please choose the correct ending to complete the given sentence: Disc dog: A man and a dog walk onto a field. a man

Ending1: throws a frisbee and the dog chases after it. Ending2: is performing gymnastics on a track. Ending3: picks up a large weight as he walks. Ending4: starts performing a chopped-up grass-based lawn mowing service.

Answer format: ending1/ending2/ending3/ending4