[Q] Given the sentence "Two men are attaching a sign to a standing log." is it true that "Two men were hammering nails into the fence."?
[A] A sign can be attached without hammering nails. A standing log isn't always part of a fence.
The answer is it is not possible to tell.

[Q] If "Young boy in an orange shirt climbing an apple tree." does that mean that "A boy climbs a tree to pick an apple."?
Options:
- yes
- it is not possible to tell
- no
[A] Climbing an apple tree is not necessarily to pick an apple.
The answer is it is not possible to tell.

[Q] Premise: "Construction workers hard at work."
Hypothesis: "Construction workers having a picnic."
Do we know that the hypothesis entailed by the premise?
[A] Construction workers cannot be at work and having a picnic simultaneously.
The answer is no.