QUESTION: If "A group of students work on a project." does that mean that "While world flags hang above their heads."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A group of exchange students are working on a team building exercise.
The answer is it is not possible to tell.

QUESTION: Premise: "A man in a red jacket is standing in front of a tall white building."
Hypothesis: "A man is hailing a cab."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: Standing in front a building does not imply hailing a cab.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A boy is pulling a wild face whilst waving cooking implements in his hands." that "A boy plays at being a tv chef."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
A boy waving cooking implements does not imply plays at being a TV chef.
The answer is it is not possible to tell.