Q: Given the sentence "A young man sits on the curb while another rides a skateboard with green wheels down the street." is it true that "A young man waits for his turn on a skateboard."?
A: Just because the young man is sitting doesn't mean he waits for his turn.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A man is holding a hammer in one hand and piece of hot iron." that "A metalurgist works."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Not all men holding a hammer and a piece of iron need be a metalurgist.
The answer is it is not possible to tell.

[QUESTION] Premise: "People in a brown boat float down the street of a city built on water."
Hypothesis: "The people are on vacation."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
People in a boat in a city built on water does not necessarily imply that they are on vacation.
The answer is it is not possible to tell.

Q: If "A small group of men are having dinner and talking." does that mean that "A large group of people are eating lunch and yelling."?
Options:
- yes
- it is not possible to tell
- no
A: The group can only be small or large and they can't be eating both lunch and dinner or talking and yelling.
The answer is no.

QUESTION: If "A teenage boy gets a lot of air on his bike at a bike course." does that mean that "A teenage boy is flying in the air on his bike."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Gets a lot of air is another way of saying flying in the air.
The answer is yes.

QUESTION: If "A female tennis player stands on a court." does that mean that "Looking away from the ball."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
A female tennis player is about to be hit by the ball.
The answer is it is not possible to tell.