[QUESTION] Test for natural language inference.
Premise: "Two men playing guitars are singing at a concert."
Hypothesis: "The two men play guitars and sing."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Playing guitars and singing is rephrasing of plays guitars and sings.
The answer is yes.

Q: If "Two black and white dogs and one has something blue in its mouth." does that mean that "There are two dogs and one dog has something."?
Options:
- yes
- it is not possible to tell
- no
A: There is something blue in the mouth of one of the two black and white dogs.
The answer is yes.

QUESTION: Test for natural language inference.
Premise: "A guy works on a building."
Hypothesis: "The worker works on the building."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A guy is a worker who is working on a building.
The answer is yes.

[QUESTION] Given the sentence "Two people crossing the street downtown." is it true that "A man and a woman cross main street."?
Main Street is a specific street--any street could be being crossed.
The answer is it is not possible to tell.

Q: Given the sentence "A man stands at the top of a mountain with his hands in the air." is it true that "A man stands at the top of a summit with his hands in the air."?
A: A man stands at the top of a summit is a rephrasing of the man stands on top of a mountain.
The answer is yes.

[QUESTION] Given the sentence "A taxi going over the bridge with people standing or walking on the bridge." can we conclude that "A taxi parked in a parking lot."?
Options:
- yes
- it is not possible to tell
- no
The taxi cannot be both parked in a parking lot and moving over a bridge.
The answer is no.