Student: Given the sentence "A woman practicing martial arts in a gym." is it true that "A woman is with a man at the gym."?.
Teacher: Let's think:

A woman is with a man at the gym doesn't mean that they are practicing martial arts in a gym. So the final answer is it is not possible to tell.
Student: Given the sentence "A woman practicing martial arts in a gym." is it true that "A woman is with a man at the gym."?.
Teacher: Let's think:

user
A woman is with a man at the gym doesn't mean that they are practicing martial arts in a gym. So the final answer is it is not possible to tell.
assistant
Student: Given the sentence "A woman practicing martial arts in a gym." is it true that "A woman is with a man at the gym."?.
Teacher: Let's think:

A woman is with a man at the gym doesn't mean that they are practicing martial arts in a gym. So the final answer is it is not possible to tell.