[QUESTION] Given the sentence "A man dressed as a clown looks on." is it true that "The clown is a girl."?
A man dressed as a clown doesn't indicate that the clown is a girl.
The answer is it is not possible to tell.

Q: Premise: "An old woman dressed in a red coat holds a red bag and a pink umbrella."
Hypothesis: "The woman expects rain today."
Do we know that the hypothesis entailed by the premise?
A: A woman can hold an umbrella whether she expects rain or not.
The answer is it is not possible to tell.

QUESTION: Premise: "A gray-haired man stands next to a police van."
Hypothesis: "A man is being arrested."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: A man stands next to a police van doesn't necessarily mean that is being arrested.
The answer is it is not possible to tell.

[QUESTION] Premise: "A police officer is standing in a doorway."
Hypothesis: "A policeman is chasing a suspect in his patrol car."
Do we know that the hypothesis entailed by the premise?
A officer is not standing if he is chasing someone in his car.
The answer is no.

Q: Test for natural language inference.
Premise: "Two white dogs play on the green grass."
Hypothesis: "Two white dogs are playing with some children outside on the grass."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: Two dogs playing does not mean they are also playing with children outside.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Guy jumping off a pier into lake." can we conclude that "A man is diving into a lake."?
Options:
- yes
- it is not possible to tell
- no
A is guy is a man. Jumping of a pier is is a form of diving.
The answer is yes.