Student: 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."?.
Teacher: Let's think:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A sign can be attached without hammering nails. A standing log isn't always part of a fence. So the final answer is it is not possible to tell.