[QUESTION] Given the sentence "A construction worker is fixing a large machine." is it true that "A man fixes a tractor."?
The man could be fixing a different large machine than a tractor.
The answer is it is not possible to tell.

Q: Premise: "A woman with violet dyed hair and blue earrings is riding a bicycle."
Based on this premise, can we conclude that the hypothesis "A woman is riding a horse." is true?
Options:
- yes
- it is not possible to tell
- no
A: A woman can not ride a bicycle and a horse simultaneously.
The answer is no.

QUESTION: Premise: "Two men in safety gear navigate an inflated boat."
Based on this premise, can we conclude that the hypothesis "Two men navigate to save the stranded people." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Men could navigate an inflated boat for a reason other than to save the stranded people.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Dirt bikers traverse a series of jumps." is it true that "Some dirt bikers are falling off their bike."?
Just because Dirt bikers traverse a series of jumps does not mean they are falling off.
The answer is it is not possible to tell.

Q: Can we conclude from "A small boy wearing a diaper stands near the door and is covered in marker." that "A boy covered in marker stand by a door."?
Options:
- yes
- no
- it is not possible to tell
A: Small boy is a type of a boy and standing near a door is same as stand by a door.
The answer is yes.

[QUESTION] Premise: "Brown and white dog with a baseball in its mouth."
Hypothesis: "The dog threw up."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
One cannot have a baseball in its mouth and throw up simultaneously.
The answer is no.