[Q] Premise: "A little girl dressed in a white dress is preparing to lay the floral petals down for a wedding."
Hypothesis: "The little girl smells her basket of rose petals."
Do we know that the hypothesis entailed by the premise?
[A] We can't say she smells a basket of rose petals; she is getting ready to drop them.
The answer is it is not possible to tell.

[Q] Premise: "I man is riding a 3 wheeled pedal bike and is airborne."
Hypothesis: "A human riding."
Do we know that the hypothesis entailed by the premise?
[A] A human is a man and riding implies on a 3 wheeled pedal bike in the air.
The answer is yes.

[Q] Premise: "A group of young men and woman gather at a park."
Hypothesis: "A group of young men and women gathering snow."
Do we know that the hypothesis entailed by the premise?
[A] A group of young men and women gather at a park and not gathering snow.
The answer is no.