Student: Premise: "A dog holding a baseball in his mouth."\nHypothesis: "A dog is trying to catch a frisbee."\nIs the hypothesis entailed by the premise?\nOptions:\n- yes\n- it is not possible to tell\n- no.
Teacher: Let's think:

User
A dog that is trying to catch a frisbee will not be holding a baseball in his mouth simultaneously. So the final answer is no.
Assistant