Please answer the following question by reasoning step-by-step. Can we conclude from "An elderly man wearing a black jacket and blue jeans is sitting on a bench while looking at his phone." that "A man sitting on a bench is preparing to make phone call."?\nOptions:\n- yes\n- no\n- it is not possible to tell. Step-by-step reasoning:
User
An elderly man looking at his phone is not necessarily preparing to make phone call. So the answer is it is not possible to tell.
Assistant