Student asked: Given the sentence "Two college basketball teams duking it out." can we conclude that "People play big game."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Just because two college basketball teams are duking it out does not mean they play a big game. The answer is it is not possible to tell.

Student asked: Test for natural language inference.
Premise: "Nighttime scene of outdoor food kiosk."
Hypothesis: "It is night time."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. A nighttime scene is defined by the qualifier that it is night time. The answer is yes.

Student asked: Premise: "A man leaning on a fence is playing the harmonica."
Based on this premise, can we conclude that the hypothesis "A woman plays violin." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A man playing the harmonica can't also be a woman playing the violin. The answer is no.

Student asked: Can we conclude from "Several couples sit on hotel ballroom style conference chairs and watch something outside the frame of the picture." that "A couple is dancing on the table in the middle of a hotel ballroom."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:
Let's think. Several couples sit and watch something instead of one couple dancing on a table. The answer is no.