Please choose the correct ending to complete the given sentence: Polishing forniture: A large piece of machinery is seen sitting in a room. A robot arm then moves into frame attempting to push things around. the robot

Ending1: finally moves out of frame and the machine gives him a thumbs up. Ending2: finishes and looks through the lens. Ending3: then runs away from the camera. Ending4: fails and pulls it's arm back in.

Answer format: ending1/ending2/ending3/ending4