Q: Can we conclude from "People stand along the sidewalk watching a bus come their way." that "People are observing an approaching vehicle."?
Options:
- yes
- no
- it is not possible to tell
A: People are observing an approaching vehicle as they are on the sidewalk watching the bus.
The answer is yes.

Q: Premise: "Two children ride their tricycles on a sidewalk in front of a brightly painted wall."
Hypothesis: "Two children ride their tricycles as a dog follows them."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: In fact that two children ride their tricycles on a sidewalk in front of a brightly painted wall does not imply a dog follows them.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A young football player standing on the sidelines looks towards the sky while holding crutches."
Hypothesis: "The football player hurt his ankle during the game."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: We don't know which body part the football player hurt; it may not have been the ankle.
The answer is it is not possible to tell.

Q: Premise: "A janitor cleaning a marble floor."
Based on this premise, can we conclude that the hypothesis "A janitor enjoys cleaning." is true?
Options:
- yes
- it is not possible to tell
- no
A:
Just because the janitor is cleaning does not mean he enjoys cleaning.
The answer is it is not possible to tell.