[Q] Given the sentence "A young child is trying to balance on a bench in the park." is it true that "A young adult is trying to balance on a bench in the park."?
[A] A young child is not the same as a young adult.
The answer is no.

[Q] Premise: "A person is dirt biking over rocks and water."
Hypothesis: "A person is racing dirt bikes to be number one in the state."
Do we know that the hypothesis entailed by the premise?
[A] The person racing is not necessarily doing it to be number one.
The answer is it is not possible to tell.

[Q] Given the sentence "Cowboy being bucked off of a horse." is it true that "There is a person outside on a sunny day."?
[A] Being bucked off of a horse does not imply that it is a sunny day.
The answer is it is not possible to tell.