[QUESTION] Can we conclude from "A man wearing a white hard hat is lifting two pieces of rebar." that "The man is wearing a safety vest."?
Options:
- yes
- no
- it is not possible to tell
Wearing a white hard hat doesn't mean that person is wearing a safety vest.
The answer is it is not possible to tell.

Q: If "A street performer with a guitar entertains a group of people at night." does that mean that "A musician restrings his guitar."?
Options:
- yes
- it is not possible to tell
- no
A: One cannot be entertaining with a guitar and restringing his guitar at the same time.
The answer is no.

QUESTION: Given the sentence "A bike rider is caught midair in front of some trees." is it true that "A person standing still."?

Let's solve it slowly: A bike rider who is caught midair would not be standing still.
The answer is no.

[QUESTION] Premise: "An older man with a white beard stands in front of a mast on a large sailboat."
Hypothesis: "While holding a rope."
Do we know that the hypothesis entailed by the premise?
A man with a beard stands in front of a mast.
The answer is yes.

Q: Premise: "Many floppy-eared dogs head toward the direction of the camera while bystanders look on."
Hypothesis: "A movie scene is filmed that includes dogs and a group of bystanders."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: Many floppy eared dogs head toward a camera does not infer a movie scene is filmed.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A man and a woman both wearing blue shirts using a camera to take a picture of themselves in front of a fountain as a dark-haired woman passes by." can we conclude that "They are wearing nothing."?
Options:
- yes
- it is not possible to tell
- no
They cannot simultaneously be wearing blue shirts and wearing nothing at all. Shirts are something.
The answer is no.