[QUESTION] Given the sentence "A person rides a bike off the top of a hill and is airborne." is it true that "They are riding very fast."?
A person rides a bike off the top of a hill and is airborne does not indicate that They are riding very fast.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "An older woman in a black coat and a white knit beret converses with an older man in a tan scooter hat and a green coat on the sidewalk near storefronts."
Hypothesis: "The couple is shopping for christmas presents."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A man and woman does not imply a couple and converses does not imply shopping.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A man using a contraption that breaths out fire while a woman holding the balloon as they attempt to fill it with hot air." is it true that "The man was going to fly in the hot air balloon."?

Let's solve it slowly: The man used the contraption because he was going to fly.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A muddy person rides his bike through a course." can we conclude that "A person in a shiny white suit jumps a motorcycle over 20 cars."?
Options:
- yes
- it is not possible to tell
- no
A person that is muddy is not likely to be in a shiny white suit.
The answer is no.

Q: Test for natural language inference.
Premise: "A woman and a young girl sit close and pose for a photo."
Hypothesis: "The mother and daughter sit and pose for the camera."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A woman and a young girl don't need to be mother and daughter for them to sit close and pose for a photo.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "An african american woman looking at a poster." that "A woman is looking at something."?
Options:
- yes
- no
- it is not possible to tell
The woman is African American and a poster is type of something.
The answer is yes.