[Q] Given the sentence "Girls play soccer." is it true that "The girls play on the same team."?
[A] Just because girls play soccer doesn't imply on the same team.
The answer is it is not possible to tell.

[Q] Premise: "A young man standing in front of a red freight car holding a camera and taking a photo."
Hypothesis: "There is a teenager standing near a rail car while taking pictures."
Do we know that the hypothesis entailed by the premise?
[A] A young man is a teenager. Taking pictures is a way of rephrasing taking a photo.
The answer is yes.

[Q] Given the sentence "A big man sleeping in the chair." is it true that "A man sleeps in the chair."?
[A] A man sleeps when a man is sleeping in a chair.
The answer is yes.