Q: Test for natural language inference.
Premise: "A man wearing a black shirt smoothing out concrete in an urban area."
Hypothesis: "The man is using a jackhammer to break up the concrete."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: You cannot break up the concrete and be smoothing out concrete at the same time.
The answer is no.

Q: Given the sentence "A nighttime rally at a landmark." can we conclude that "It is dark outside at the rally."?
Options:
- yes
- it is not possible to tell
- no
A: During the nighttime it is usually dark because it is at night.
The answer is yes.

Q: Can we conclude from "Tourists taking photographs." that "Tourists take photographs of the city."?
Options:
- yes
- no
- it is not possible to tell
A: Tourists often photograph many things and not just photos of the city.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A church assembly is listening to a choir perform."
Hypothesis: "People are enjoying music."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A:
The people in the church assembly may or may not be enjoying the music.
The answer is it is not possible to tell.