QUESTION: Can we conclude from "A serious looking man is working on a very interesting sculpture of gray." that "A man hard at work sculpting a masterpiece."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Just because a is working on a sculpture does not mean that it will be a masterpiece.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A biker wearing a helmet."
Hypothesis: "A biker has a helmet."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The biker is wearing the helmet or just has a helmet.
The answer is yes.

Q: Test for natural language inference.
Premise: "People are browsing through items in an open aired market."
Hypothesis: "The people are watching a carnival."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: If people are browsing a market they are not watching a carnival.
The answer is no.

QUESTION: Premise: "Dogs in a race."
Hypothesis: "The dogs are beside thier owners."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: The dogs may either be in a race or beside their owners.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "A surfer in a black wetsuit surfs on a medium wave."
Hypothesis: "The surfer caught a wave."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A surfer surfs on a medium wave implies that he caught a wave.
The answer is yes.

Q: Premise: "A child is doing a back flip whilst jumping on a trampoline."
Hypothesis: "A child is watching television while sitting on the couch."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A:
The child is not watching television while sitting on the couch because he's jumping on a trampoline.
The answer is no.