Student asked: Test for natural language inference.
Premise: "A woman in black swim-wear is combing her hair on a beach."
Hypothesis: "A woman is combing her hair on the beach."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. On the beach and on a beach are the same thing. The answer is yes.

Student asked: Premise: "A guy going off a ramp on a skateboard."
Based on this premise, can we conclude that the hypothesis "A sad guy going off a ramp on a skateboard." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A guy can go off a ramp on a skateboard without being sad. The answer is it is not possible to tell.

Student asked: Given the sentence "A man is standing in a park by a path holding a tennis racket in front of him." can we conclude that "A man is standing in a park by a path holding a tennis racket ahead of him."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A tennis racket in front of him is the same as tennis racket ahead of him. The answer is yes.

Student asked: Can we conclude from "Three young men in a crowd watching tennis on a large screen." that "Three friends are watching a tennis game."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:
Let's think. The three young men are three friends watching a tennis game. The answer is yes.