QUESTION: Premise: "A man in a blue hooded sweatshirt has his hands on the back spokes of his upside-down bike."
Based on this premise, can we conclude that the hypothesis "As he sits on a low graffiti-covered wall among palm trees." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A boy is at a skate park attempting to repair his bike by the wall.
The answer is it is not possible to tell.

QUESTION: Premise: "An elderly man and woman hold hands on the sidewalk."
Hypothesis: "Two children play on the sidewalk."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: Children are not as old as an elderly man and woman.
The answer is no.

QUESTION: Given the sentence "A plane with a man hanging out of the cockpit window." can we conclude that "The pilot signals the ground crew."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
We can't say he signals the ground crew; he is only seen to be hanging.
The answer is it is not possible to tell.