[QUESTION] Given the sentence "A young man holding a green balloon shaped like a star in front of a large stone building." is it true that "A person holds a balloon while waiting for a friend."?
He could just be enjoying the building instead of waiting for a friend.
The answer is it is not possible to tell.

[QUESTION] Premise: "Two motorcyclists traveling down the road."
Based on this premise, can we conclude that the hypothesis "Two people sit on their parked motorcycles." is true?
Options:
- yes
- it is not possible to tell
- no
The motorcyclists cannot be traveling down the road and be parked at the same time.
The answer is no.

[QUESTION] Premise: "A dark colored man is holding a protest banner in a busy city street with people staring from behind."
Hypothesis: "A white woman holding a banner."
Do we know that the hypothesis entailed by the premise?
The protester is a dark colored man and can not also be a white woman.
The answer is no.

[QUESTION] Premise: "A person jumping a ramp with three people in the background."
Hypothesis: "The people are watching a bmx show."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Jumping a ramp does not mean it is a BMX show.
The answer is it is not possible to tell.