[Q] Premise: "Two young girls sitting on an all terrain vehicle."
Hypothesis: "Two old men use walkers to get down the hallway."
Do we know that the hypothesis entailed by the premise?
[A] Girls are not men. Walkers require walking so a person cannot be sitting simultaneously.
The answer is no.

[Q] Test for natural language inference.
Premise: "These people are walking and working outside in a field."
Hypothesis: "The people are wearing straw hats."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
[A] Just because these people are walking and working outside in a field does not mean that they are wearing straw hats.
The answer is it is not possible to tell.

[Q] Premise: "A boy with a red shirt and headphones is looking at a monitor."
Hypothesis: "The boy is looking at a video in the monitor."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
[A] Not all boy looking at a monitor is looking at a video.
The answer is it is not possible to tell.