[Q] Premise: "A young helmeted biker in blue takes to the air while going over small hills."
Hypothesis: "A biker catches air."
Do we know that the hypothesis entailed by the premise?
[A] Catches air and takes to the air mean the same thing.
The answer is yes.

[Q] If "A child in a blue shirt and orange swim trunks is underwater." does that mean that "He is in a pool."?
Options:
- yes
- it is not possible to tell
- no
[A] A child in swim trunks underwater is not necessarily in a pool.
The answer is it is not possible to tell.

[Q] Can we conclude from "A group of firemen leaving a fire scene." that "Fire fighters have done their job."?
Options:
- yes
- no
- it is not possible to tell
[A] Leaving a fire scene implies that the fire fighters have finished and done their job.
The answer is yes.