If "A smiling woman who is sewing on a machine." does that mean that "The sewing machine works."?\nOptions:\n- yes\n- it is not possible to tell\n- no
Let's be accurate as possible and think first.
yes
The implications is that when a woman sews on a sewing machine that works it makes her smile.

If a woman is sewing it implies that the machine works.

.

Therefore, the answer is yes