Q: Premise: "A mustached man attempts to chisel away at a concrete pillar."
Hypothesis: "A man has removed the pillar."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: Either the man has removed the pillar or he attempts to chisel it.
The answer is no.

Q: Given the sentence "A biker is doing an aerial trick on his bike." can we conclude that "The biker performs a trick on his bike."?
Options:
- yes
- it is not possible to tell
- no
A: A biker doing an aerial trick means he performs a trick.
The answer is yes.

Q: Premise: "A man rides a bicycle on a rocky path beside a lake in the mountains."
Hypothesis: "Man biking to top of mountain."
Do we know that the hypothesis entailed by the premise?
A: Riding beside a lake does not imply riding to the top of a mountain.
The answer is it is not possible to tell.

Q: Can we conclude from "A biker moving quickly past trees." that "A biker is moving fast as he races through the californian redwoods."?
Options:
- yes
- no
- it is not possible to tell
A:
Nothing about a biker moving quickly past trees implies that he is moving fast as he races in the California redwoods.
The answer is it is not possible to tell.