[QUESTION] Given the sentence "Four people are holding signs of protest while cars pass behind them." is it true that "Four people hold hot dogs at the carnival."?
Hot dogs and signs of protest are not the same thing.
The answer is no.

Q: Test for natural language inference.
Premise: "A surfer looks behind him to see the next wave."
Hypothesis: "A surfer standing on the beach next to his board."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: He cannot look behind him to see the wave if he is still standing on the beach.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "A semi trailer is inside a building."
Hypothesis: "And people are gathered behind its open rear door where there are displays being set up."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A new department store is opening and the semi-trailer is delivering product.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A man in a black flees holds ropes on a balcony." can we conclude that "A man in a black fleece is on the balcony."?
Options:
- yes
- it is not possible to tell
- no
The man is on the balcony because he holds ropes on the balcony.
The answer is yes.

Q: If "A girl in a floral bathing suit jumping on the beach in front of the waves." does that mean that "A girl is playing at the beach."?
Options:
- yes
- it is not possible to tell
- no
A: Jumping on the beach in front of the waves is a form of playing.
The answer is yes.

[QUESTION] Premise: "A man and a woman in winter clothing sitting in chairs by a lake."
Hypothesis: "Two people are sitting outside."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A man and a woman implies two people. Lake is outside.
The answer is yes.