[Q] Premise: "A man in a black hat reaches into a box."
Hypothesis: "The man in a black hat was trying his luck at something."
Do we know that the hypothesis entailed by the premise?
[A] Reaching into a box does not necessarily mean trying his luck.
The answer is it is not possible to tell.

[Q] Premise: "Many people are sitting by long tables filled with computers but most are not using them."
Hypothesis: "The people are women."
Do we know that the hypothesis entailed by the premise?
[A] Not using computers does not imply that the people are women.
The answer is it is not possible to tell.

[Q] Test for natural language inference.
Premise: "A woman in a blue jacket taking a picture."
Hypothesis: "A woman wearing jacket."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
[A] A woman in a jacket means she is wearing the jacket.
The answer is yes.