[QUESTION] Premise: "Two men and two women working in a laboratory of some sort."
Hypothesis: "They are trying to find out the cause of death."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
People can work in a laboratory for many reasons aside from looking for a cause of death.
The answer is it is not possible to tell.

Q: Given the sentence "A man with sunglasses is sitting on a deck." can we conclude that "The man is near water."?
Options:
- yes
- it is not possible to tell
- no
A: We know that the man is near water because he is sitting on a deck.
The answer is yes.

QUESTION: Premise: "Small child wearing a yellow life jacket walks in the sand with their boogieboard on their head."
Hypothesis: "A boy prepares to ride his boogieboard in the ocean."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: The child might not be a boy. Not everyone who carries a board prepares to ride it. There might not be an ocean.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A little girl is dressed in a pink ballerina costume." is it true that "A girl is dressed as a monkey."?
One can be either dressed in a ballerina costume or as a monkey.
The answer is no.

Q: Test for natural language inference.
Premise: "A man in his boat on the lake."
Hypothesis: "A man is fishing from his boat."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: Being in a boat on the lake does not imply that the man is fishing.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "Men playing ice hockey and one has just fallen." that "Men playing ice hockey and one seems upset because he had just fallen."?
Options:
- yes
- no
- it is not possible to tell
Just because the Hockey player fell does not mean he is upset.
The answer is it is not possible to tell.