[QUESTION] Premise: "A mountain biker in a green shirt is suspended in the air."
Hypothesis: "A mountain biker in a red shirt is suspended in the air."
Do we know that the hypothesis entailed by the premise?
A mountain biker cannot be in a green shirt at the same time he is in a red shirt.
The answer is no.

Q: Given the sentence "A man with prosthetic legs just finished a run." is it true that "A man with  prosthetic arms did not finish the run."?
A: A man with prosthetic legs who just finished a run cannot be the man with prosthetic arms who did not finish the run.
The answer is no.

QUESTION: If "Police frisk a person dressed as santa as others watch." does that mean that "A mall santa is accused of carrying a weapon."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Not all Santas are a mall Santa and being frisked does not imply accused of carrying a weapon.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "Two cowboys roping horses in a rodeo." that "Two indians are hunting some horses."?
Options:
- yes
- no
- it is not possible to tell
It can only be either cowboys or Indians. Roping and hunting are separate activities.
The answer is no.

Q: Premise: "Four people are sitting down on the floor and eating."
Hypothesis: "Four people are eating dinner."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: Sitting down on the floor and eating does not necessarily mean eating dinner.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "Children stand under an umbrella in a river." that "Children are using the umbrella for shade."?
Options:
- yes
- no
- it is not possible to tell
Children standing under an umbrella in a river does not imply they are using the umbrella for shade.
The answer is it is not possible to tell.