Please choose the correct ending to complete the given sentence: Drinking beer: One of the men is using a controller to make the arm pick up a bottle. The arm brings the bottle to the man's face, so he can take a drink. then the robot

Ending1: arrives and grabs the bottle and the person makes the arm grab. Ending2: removes the bottle and drinks. Ending3: has to take it away again. Ending4: returns the bottle to the table.

Answer format: ending1/ending2/ending3/ending4