QUESTION: Given the sentence "A firefighter puts on his gas mask." is it true that "A firefighter with a yellow coat puts on a gas mask."?

Let's solve it slowly: A firefighter need not be wearing a yellow coat. Firefighters may wear different color uniforms or not even be in uniform at all.
The answer is it is not possible to tell.

[QUESTION] If "A man with a backpack is walking down the sidewalk in front of a red brick building." does that mean that "The man is playing lacrosse."?
Options:
- yes
- it is not possible to tell
- no
One does cannot be playing lacrosse while walking down the sidewalk.
The answer is no.

Q: If "A woman in a black coat poses for a picture in front of a tree lined brook." does that mean that "A woman is in black."?
Options:
- yes
- it is not possible to tell
- no
A: A woman is in black refers to the color of her coat.
The answer is yes.

QUESTION: Premise: "A man sitting on a pillow in a very quiet room."
Hypothesis: "A man watching tv indoors while on a pillow."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A man watching TV cannot at the same time be in a very quiet room.
The answer is no.

[QUESTION] If "Two young girls pet a small horse." does that mean that "Two girls are riding on a donkey."?
Options:
- yes
- it is not possible to tell
- no
To pet a small horse is completely different than riding a donkey.
The answer is no.

Q: Test for natural language inference.
Premise: "A seagull on a picnic table at a dock."
Hypothesis: "The bird is soaring through the sky."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A:
A bird cannot be on a picnic table and soaring at the same time.
The answer is no.