Q: Test for natural language inference.
Premise: "An older man stand outside of a shop window."
Hypothesis: "An sad man stand outside of a shop window."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: Not all older men standing outside of a shop window are sad.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A man wearing a professional blue suit and protective glasses is trying to open a locker with a tool."
Hypothesis: "A man is a locksmith."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: People of many different professions wear blue suits and protective glasses and people other than locksmiths can try to open a locker with a tool so that doesn't necessarily tell us he is a locksmith.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "Construction workers installing a light post." that "This is difficult work."?
Options:
- yes
- no
- it is not possible to tell
Installing a light post does not imply it is difficult work necessarily.
The answer is it is not possible to tell.

Q: Given the sentence "A dark-haired young disc jockey plays music." is it true that "A young dj plays music at a rave."?
A: A dark-haired young disc jockey plays music does not imply it is at a rave.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A group of people eat outside the utah museum of fine arts." is it true that "They enjoy each other's presence and company."?

Let's solve it slowly: People eating outside the Utah Museum of Fine Arts are not necessarily to enjoy each other's presence and company.
The answer is it is not possible to tell.

QUESTION: Premise: "A boy in a red shirt riding a skateboard quickly down the road."
Based on this premise, can we conclude that the hypothesis "The boy's shirt was not blue." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
Red and blue are different color so red is not blue.
The answer is yes.