Q: Premise: "A boy stands with three girls."
Hypothesis: "They are siblings."
Do we know that the hypothesis entailed by the premise?
A: Boys and girls can stand by each other without being siblings.
The answer is it is not possible to tell.

Q: Given the sentence "Windsurfer in low wind conditions on a lake." is it true that "A man is butchering a calf."?
A: When a man can butcher a calf the conditions on a lake.
The answer is no.

Q: Can we conclude from "Man and woman standing at grand canyon looking out." that "The man and woman are siblings."?
Options:
- yes
- no
- it is not possible to tell
A: Man and woman standing at grand canyon need not be siblings.
The answer is it is not possible to tell.

Q: If "A man with a black shirt and black pants doing a trick on a skateboard." does that mean that "A man wearing a white shirt is riding a bike."?
Options:
- yes
- it is not possible to tell
- no
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A man doing trick on a skateboard cannot be riding a bike the same time.
The answer is no.