Please choose the correct ending to complete the given sentence: Roof shingle removal: The credits are shown below a red arrow. a person that is using a power tool

Ending1: wipes dirt off the lawn with a rag. Ending2: on an industrial sized vacuum uses the power tool on a vacuum. Ending3: is working on the roof. Ending4: is preparing to use the power tool.

Answer format: ending1/ending2/ending3/ending4