Student asked: Given the sentence "A man in a red shirt and camouflage shorts is outside grilling." is it true that "He is cleaning his grill while dressed in red and camouflage."?
Teacher's response: Let's think. Even though the man is outside grilling it does not mean he is cleaning his grill. The answer is it is not possible to tell.

Student asked: If "Young men watching sesame street." does that mean that "The men are reading books."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. They can't be watching something and reading something at the same time. The answer is no.

Student asked: Given the sentence "A policeman is checking out his motorcycle." is it true that "A policeman is sitting on his motorcycle at a stop light."?
Teacher's response: Let's think. A policeman cannot be checking out his motorcycle and be sitting on it simultaneously. The answer is no.

Student asked: Premise: "A man in a green sheet is in midair on a green-wheeled skateboard at a skateboard park."
Based on this premise, can we conclude that the hypothesis "A man is doing a skateboarding trick outside." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. The location of the skateboard park may not be outside and the man may not be performing a trick. The answer is it is not possible to tell.