QUESTION: Premise: "A father and infant son enjoying themselves at a pool."
Hypothesis: "A father and son play in a pool."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: People can enjoy themselves in a pool without necessarily engaging in play.
The answer is it is not possible to tell.

QUESTION: Premise: "A man in a black jacket is standing with a group of people behind him."
Hypothesis: "The man has a shady past."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Attire and groups of people cannot determine that the man has a shady past.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A group to tennis players preparing to play." that "These guys hate tennis."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
One would not be preparing to play something that they hate.
The answer is no.