[QUESTION] Given the sentence "A female tennis player prepairing to serve the ball." can we conclude that "A tennis player sits on the bench with a towel over her face."?
Options:
- yes
- it is not possible to tell
- no
A tennis player who sits on the bench cannot be preparing to serve the ball.
The answer is no.

Q: Premise: "A woman talking to a man in a bar."
Hypothesis: "The man asked the woman out."
Do we know that the hypothesis entailed by the premise?
A: Woman talking to a man does not necessarily mean the man asked the woman out.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A man and a woman are up on a stage with microphones in their hands."
Hypothesis: "Frogs are hoping."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Frogs are unlikely to be hoping to be on stage. They may be hopping mad to realize they cannot hold a microphone.
The answer is no.

[QUESTION] Given the sentence "Two children playing a ballgame." can we conclude that "Two children are driving a car."?
Options:
- yes
- it is not possible to tell
- no
You can not drive a car and play a ball game at the same time.
The answer is no.

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.

[QUESTION] Test for natural language inference.
Premise: "A martial artist lands a blow to the thigh of his opponent while a referee throws up his hand."
Hypothesis: "A referee calls an illigal during a martial arts fight."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The referee could be making any kind of signal and did not actually calling an illegal.
The answer is it is not possible to tell.