QUESTION: Given the sentence "A young boy wearing a blue hat is looking through a telescope while another boy watches." is it true that "The boys played a prank by hitting the boy in the head with a bowling ball."?

Let's solve it slowly: The boy can't be looking through the telescope while pulling a prank.
The answer is no.

QUESTION: Given the sentence "A shirtless man and woman in a black shirt running." is it true that "The shirtless man was cold running to look for something to wear."?

Let's solve it slowly: A shirtless man is not necessarily cold and not necessarily running to look for something to wear.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A man kayaking down rapids." can we conclude that "The man is on vacation."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
A man may go kayaking down rapids without being on vacation.
The answer is it is not possible to tell.