[Q] Can we conclude from "A male walks on the graffiti wall." that "Someone walks on a wall."?
Options:
- yes
- no
- it is not possible to tell
[A] The male walking on the graffiti wall is walking on the wall.
The answer is yes.

[Q] Premise: "Two elderly men sit on a park bench."
Based on this premise, can we conclude that the hypothesis "With flowers in the background." is true?
Options:
- yes
- it is not possible to tell
- no
[A] Two men are enjoying their weekly chess match in the park.
The answer is it is not possible to tell.

[Q] Given the sentence "California running back is taking a hand off." is it true that "The running back is playing football."?
[A] Just because a running back is taking a hand off it doesn't mean he is playing football. He may be practicing his hand off skills with another player.
The answer is it is not possible to tell.