[QUESTION] If "A dog running through water with a ball in its mouth." does that mean that "A dog pulled away from his owner and jumped into the water to grab a stray ball."?
Options:
- yes
- it is not possible to tell
- no
No owner is seen to have been pulled away from; the ball may not be stray.
The answer is it is not possible to tell.

Q: Given the sentence "Two motorcycles and four riders are on the road." can we conclude that "The riders are part of a gang."?
Options:
- yes
- it is not possible to tell
- no
A: Motorcycles and four riders are not necessarily part of a gang.
The answer is it is not possible to tell.

QUESTION: Premise: "A black dog is followed by two brown dogs over sand."
Hypothesis: "Three dogs are walking on sand."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A black dog and two brown dogs can be combined to make three dogs.
The answer is yes.

[QUESTION] Can we conclude from "A boy is combing his hair using the car windows as a mirror." that "A boy is combing his hair with a brush."?
Options:
- yes
- no
- it is not possible to tell
A boy combing is hair does not imply that he is using a brush.
The answer is it is not possible to tell.

Q: Given the sentence "A young boy in a blue bathing suit is jumping into an indoor pool." is it true that "A boy jumps into a pond."?
A: A boy who jumps into a pond can't be jumping into an indoor pool at the same time.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "A piece of heavy machinery sits in front of a hole."
Hypothesis: "The toy tonka truck is sitting in the toybox because no one wants to play with it anymore."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Heavy machinery is used for real construction and building purposes were toys are for play and the imagination of those to young for such activities.
The answer is no.