[QUESTION] If "Teenage boy looking over his shoulder during a social event." does that mean that "A boy is serving drinks at a party."?
Options:
- yes
- it is not possible to tell
- no
The boy looking over his shoulder cannot be the same boy serving drinks.
The answer is no.

Q: Can we conclude from "A player falls on her knees during a roller derby." that "A player is knocked over during a roller derby."?
Options:
- yes
- no
- it is not possible to tell
A: A player can fall on her knees without being knocked over.
The answer is it is not possible to tell.

QUESTION: If "Two puppies playfully nip and chase each other." does that mean that "Two dogs are asleep."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Puppies and dogs refer to different ages. The puppies cannot nip and chase each other if they are asleep.
The answer is no.

[QUESTION] Premise: "Two smiling young men look at the camera."
Based on this premise, can we conclude that the hypothesis "Two people are looking at the camera." is true?
Options:
- yes
- it is not possible to tell
- no
There is no such information; the second sentence follows from the first as men are people.
The answer is it is not possible to tell.

Q: Premise: "A young boy is rollerblading across a wide open space."
Based on this premise, can we conclude that the hypothesis "A boy in the class room." is true?
Options:
- yes
- it is not possible to tell
- no
A: A boy is not rollerblading if the boy is in the classroom.
The answer is no.

[QUESTION] Can we conclude from "A man works on a bicycle that's set upside down in front of two cars." that "A man is working on his bike."?
Options:
- yes
- no
- it is not possible to tell
Sentence 1: A man works on a bicycle that's set upside down in front of two cars. Sentence 2: A man is working on his bike.
The answer is it is not possible to tell.