Question and answer: Q: Given the sentence "A young man skateboards over a commercial trash container while two other guys watch." can we conclude that "Three guys are out practicing with their skateboards."?
Options:
- yes
- it is not possible to tell
- no
A: it is not possible to tell
Explanation: Three guys can be practicing with their skateboards without skating over a trash container. Not all guys are young.

Question and answer: Q: Can we conclude from "Two people are sitting in the park." that "On a cold winter day."?
Options:
- yes
- no
- it is not possible to tell
A: no
Explanation: The two people are arguing over the last ham sandwich at the local supermarket.

Question and answer: Q: Premise: "An individual surfing in the ocean."
Hypothesis: "A person is surfing in the ocean."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: yes
Explanation:
Here a person refers to an individual surfing in the ocean.