[Q] Given the sentence "A bicyclists drive by a building covered in graffiti." is it true that "A bike rider is going past a graffiti covered building."?
[A] To drive a bike is another way of saying one is going on a bike.
The answer is yes.

[Q] Given the sentence "A backpacker is walking in front of a mountain with arms crossed." can we conclude that "A hiker comes across a backpack who refuses to uncross his arms."?
Options:
- yes
- it is not possible to tell
- no
[A] Just because a backpacker is walking with arms crossed doesn't imply a hiker comes across a backpack who refuses to uncross his arms.
The answer is it is not possible to tell.

[Q] Premise: "Two men with backpacks hiking up a trail."
Based on this premise, can we conclude that the hypothesis "The men are outside." is true?
Options:
- yes
- it is not possible to tell
- no
[A] If two men are hiking up a trail then they must be outside.
The answer is yes.