Student: If "Two boys in white outfits are practicing martial arts." does that mean that "Two boys are learning karate to defend themselves."?\nOptions:\n- yes\n- it is not possible to tell\n- no.
Teacher: Let's think:

User
The boys could be learning another type of martial arts besides karate and they may be learning it to challenge themselves instead of learning it to defend themselves. So the final answer is it is not possible to tell.
Assistant