Please choose the correct ending to complete the given sentence: Roof shingle removal: A camera pans around a large warehouse and shows clips of materials being made and men working. Machinery is shown pushing materials along while people watch on the sides. more products for homes

Ending1: are then shown as well as the man working with a bucket cutting and polishing the furniture. Ending2: are shown followed by the men bending over to remove pieces of pavement. Ending3: are being pushed out and a machinery is shown carrying them away. Ending4: are shown as well as a man vacuuming and installing furniture.

Answer format: ending1/ending2/ending3/ending4