sentence: A man is standing in front of wires and puts on a welding helmet. sentence:  He starts to weld the corner of the room. sentence:   The man sands the corner where he was welding. sentence:  He continues to weld in the same corner. sentence:  The man pushes his helmet up and replaces the wires and sands the same area again. sentence:  He places his gloves down and shows the weld he finished.