Please answer the following question by reasoning step-by-step.
If "A man in a black sailor's uniform and white hat clenches his hands together and grits his teeth." does that mean that "A man in a black sailor's uniform grits his teeth."?\nOptions:\n- yes\n- it is not possible to tell\n- no

yes
A man in black grits his teeth but he also clenches his hands together.

.

Thus, the answer is yes