Please choose the correct ending to complete the given sentence: Using uneven bars: People are in a roofed gym walking. little kid

Ending1: is doing gymnastics and its hanging from a tube. Ending2: is in a concrete arc pushing a swing and doing tricks. Ending3: is standing on front iouts in a makeshift sand court in a roofed gym. Ending4: is in a weight lifting machine and heard man talking about the exercise and getting the motivation to do it.

Answer format: ending1/ending2/ending3/ending4