Q: Premise: "A couple holding hands walks past buses driving down a busy street as their shadows cast long on the sidewalk."
Hypothesis: "A crowd of people are riding the bus."
Do we know that the hypothesis entailed by the premise?
A: One cannot walk past buses and be riding the bus simultaneously.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "A man with glasses and a gray shirt is on a crowded street."
Hypothesis: "A man is outside partying on the street."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A man is on a crowded street but he isn't necessarily partying on the street.
The answer is it is not possible to tell.

[QUESTION] Premise: "Bikers in a bike race take a sharp left turn."
Hypothesis: "The bikers are competing in the tour de france and rounding a turn coming down a mountain."
Do we know that the hypothesis entailed by the premise?
Racing to take a sharp left turn doesn't imply they are in the Tour De France.
The answer is it is not possible to tell.

Q: If "A woman hugging a man at a formal occassion." does that mean that "The man is in his bed dreaming."?
Options:
- yes
- it is not possible to tell
- no
A: One cant be in bed and at a formal occassion simultaneously.
The answer is no.

QUESTION: If "A black and white dog performs a jump with his owner looking on." does that mean that "There is a blue and green dog."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: First the dog is black and white but then he is referred to as blue and green. Most dogs are not blue and green.
The answer is no.

QUESTION: Can we conclude from "Two dogs are catching blue frisbees in grass." that "The two dogs are playing."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
Dogs who are catching Frisbees could also be described as playing Frisbee.
The answer is yes.