QUESTION: Test for natural language inference.
Premise: "A man is laying down at the bottom of some stairs and is accompanied by pigeons and a tree."
Hypothesis: "A man standing on top of a roof feeding the birds."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A man cannot be laying down and standing at the same time.
The answer is no.

[QUESTION] Given the sentence "A college course is in deep thought." is it true that "A college class is taking a test."?
A class can be in deep thought for other reasons other than taking a test.
The answer is it is not possible to tell.

Q: Can we conclude from "Group of young women and men dressed formally eat their lunches." that "They were at a conference."?
Options:
- yes
- no
- it is not possible to tell
A: People can be dressed nice without having been at a conference.
The answer is it is not possible to tell.

QUESTION: Premise: "Two males on a cliff edge and one is jumping into the water."
Hypothesis: "Two females swim in the ocean."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: They are either males or females. They can be either swimming or jumping.
The answer is no.

[QUESTION] Premise: "A gathering of people having a festival at a train yard."
Based on this premise, can we conclude that the hypothesis "People are enjoying a festival of trains." is true?
Options:
- yes
- it is not possible to tell
- no
A gathering at a train yard festival are not necessarily enjoying a festival of trains.
The answer is it is not possible to tell.

Q: Given the sentence "Two ladies stand on a sidewalk wearing skimpy clothes and men's underwear." can we conclude that "The two ladies were in the elevator."?
Options:
- yes
- it is not possible to tell
- no
A:
Someone cannot stand on a sidewalk and be in the elevator at the same time.
The answer is no.