Q: Can we conclude from "A climber ascending a mountain." that "Someone is climbing a mountain."?
Options:
- yes
- no
- it is not possible to tell
A: A climber is someone and they are ascending the mountain which indicates they are climbing.
The answer is yes.

QUESTION: Test for natural language inference.
Premise: "Three young students sitting at tables in the library working on homework."
Hypothesis: "The students watch a baseball game."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: The students either watch a baseball game or they are in the library working on homework.
The answer is no.

[QUESTION] Premise: "Three people in black and white costumes talking on the street."
Based on this premise, can we conclude that the hypothesis "People in costumes." is true?
Options:
- yes
- it is not possible to tell
- no
Three people in black and white costumes implies people in costumes.
The answer is yes.

Q: If "Boy and his grandmother laugh together." does that mean that "A boy and his grandmother are cooking pizza."?
Options:
- yes
- it is not possible to tell
- no
A: People who laugh together are unlikely to be cooking pizza at the same exact instant.
The answer is no.

QUESTION: Can we conclude from "Two firefighters spray water from a black hose." that "Firefighters fighting a fire."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Fire fighers spray water does not imply they are fighting a fire necessarily.
The answer is it is not possible to tell.

QUESTION: Given the sentence "Old man walking down a sidewalk about to pass 2 small dogs tied up outside a shop." is it true that "The old man is walking to the store."?

Let's solve it slowly:
There are many places a man could be going when he is walking down the sidewalk other than to the store.
The answer is it is not possible to tell.