QUESTION: Given the sentence "A wakeboarder is performing a trick on a rail." is it true that "Nobody is performing."?

Let's solve it slowly: A wake boarder cannot be performing when it is said that nobody is performing.
The answer is no.

[QUESTION] Premise: "A man in furry green costume smirks at the camera."
Based on this premise, can we conclude that the hypothesis "A man is dressed up." is true?
Options:
- yes
- it is not possible to tell
- no
The man is in a furry green costume but that doesn't necessarily mean he is dressed up as in dressed up to go anywhere fancy.
The answer is it is not possible to tell.

Q: Premise: "A person in a green shirt on a skateboard jumping off of a short set of stairs."
Hypothesis: "A person is skateboarding with friends."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: They could be alone - there is no indication that there are any friends there.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A chef enjoying a meal while in contemplation." that "A chef eats a meal that he just spent hours preparing."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A chef enjoying a meal doesn't imply that he spent hours for preparing the meal.
The answer is it is not possible to tell.

[QUESTION] Premise: "The lady is creating a painting outside."
Hypothesis: "The lady is washling dishes."
Do we know that the hypothesis entailed by the premise?
If she is painting outside she cant be inside doing dishes.
The answer is no.

Q: Can we conclude from "A jack russel terrier catching a frisbee in midair." that "A dog is playing with it's owner."?
Options:
- yes
- no
- it is not possible to tell
A:
The fact that a terrier is catching a Frisbee in midair doesn't always mean it is playing with it's owner.
The answer is it is not possible to tell.