Please answer the following question by reasoning step-by-step. Premise: "A bald man in a gray button-up shirt and a black blazer is glancing down from his glasses while writing something in a book which appears to be a book signing as he has similar books stacked beside him."\nBased on this premise, can we conclude that the hypothesis "A man is writing in a book." is true?\nOptions:\n- yes\n- it is not possible to tell\n- no. Step-by-step reasoning:
User
You must be writing in a book in order to sign it. So the answer is yes.
Assistant