Student asked: Given the sentence "A woman with a vacant expression throws a football as a man in a gray shirt looks at his phone." is it true that "The woman is tossing a frisbee."?
Teacher's response: Let's think. A frisbee and a football are two different types of recreation. The answer is no.

Student asked: Premise: "A man in a shiney yellow shirt stands in front of a microphone."
Hypothesis: "A woman stands in front of a microphone."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. Both the woman and the man cannot stand directly in front of the same microphone. The answer is no.

Student asked: Given the sentence "Two people eating at an outside table with their dog." can we conclude that "Two people waiting at an outdoor table in a restaurant with their dog."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Not all outdoor table are at a restaurant and the people must not be waiting. The answer is it is not possible to tell.

Student asked: Premise: "A man in jeans walks up a flight of stairs."
Hypothesis: "A man is wearing black jeans while moving."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. The jeans worn by the man can be of any color and not always black. The answer is it is not possible to tell.