Please choose the correct ending to complete the given sentence: Swimming: A girl swims by herself from one end of the pool to the other. there

Ending1: is a beach behind the girl, but she is on the wrong side of the pool. Ending2: is some swimming marks on the water as she nears the end of the pool. Ending3: is a fence between them. Ending4: are people in the background just talking.

Answer format: ending1/ending2/ending3/ending4