[Q] Given the sentence "Man surfing at the bottom of a large wave." is it true that "A man is swimming in the lake."?
[A] Surfing a large wave would imply the ocean and swimming is in the lake.
The answer is no.

[Q] Premise: "2 couples are eating dinner on the floor behind a large plant."
Hypothesis: "The couples sit on the floor together to eat their meal."
Do we know that the hypothesis entailed by the premise?
[A] Sit on the floor to eat their meal is a rephrase of eating dinner on the floor.
The answer is yes.

[Q] Premise: "Several people stand on a bike rack to look at something over bleachers."
Based on this premise, can we conclude that the hypothesis "Several people stand on a skateboard rack to look at something over bleachers." is true?
Options:
- yes
- it is not possible to tell
- no
[A] A bike rack is not the same as a skateboard rack.
The answer is no.