[Q] Premise: "Two women having a conversation."
Hypothesis: "Two sisters are having a friendly chat."
Do we know that the hypothesis entailed by the premise?
[A] Not all pairs of women are sisters. Not all conversations are friendly.
The answer is it is not possible to tell.

[Q] Can we conclude from "Smiling boy buried in sand up to his waist." that "A boy is playing in the sand."?
Options:
- yes
- no
- it is not possible to tell
[A] The boy is happy to be buried in the sand which is the result of him playing in it.
The answer is yes.

[Q] Test for natural language inference.
Premise: "Four skiers walking up a snow covered hill."
Hypothesis: "The ski lift has broken."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
[A] Skiers don't always walk up hills just because the ski lift has broken.
The answer is it is not possible to tell.