[Q] Premise: "An asian one-man man performs on the street as he sings."
Hypothesis: "Plays guitar and keyboard."
Do we know that the hypothesis entailed by the premise?
[A] A street musician is collecting a lot of money for playing guitar and singing.
The answer is it is not possible to tell.

[Q] Given the sentence "A group of people on a hot day playing in a cool fountain." is it true that "A group of people are playing outside on a hot day."?
[A] People would be outside in order to play in a cool fountain on a hot day.
The answer is yes.

[Q] Premise: "Here are 2 moms listening to a toddler."
Hypothesis: "Two women are reading a book at the cafe."
Do we know that the hypothesis entailed by the premise?
[A] Moms listening to a toddler cannot also be reading at the cafe.
The answer is no.