Q: Given the sentence "Three firemen are walking up a ladder." can we conclude that "A mailman notices a house is on fire."?
Options:
- yes
- it is not possible to tell
- no
A: The mailman noticing a fire contradicts with the firemen walking up a ladder.
The answer is no.

QUESTION: Premise: "People wait for their luggage at the airport."
Hypothesis: "A group of people are talking on their phone waiting for their bags."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: People can be waiting for luggage without talking on their phone or engaging in any other activity.
The answer is it is not possible to tell.

[QUESTION] If "A female tennis player stands on a court." does that mean that "Looking away from the ball."?
Options:
- yes
- it is not possible to tell
- no
A female tennis player is about to be hit by the ball.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A guy is riding his bike next to a brick building with bright blue doors."
Hypothesis: "A man is riding his bike to work."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A man riding his bike is not necessarily riding his bike to work.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A crowd gathers in front of a stand from which a man and two women sell food." that "The crowd is gathered outside."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: The crowd must be outside in order to gather in front of a stand from which people sell food.
The answer is yes.

QUESTION: Premise: "Skateboarder jumping down a short flight of stairs in a dimly lit warehouse."
Hypothesis: "A skateboarder is jumping."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly:
Skateboarder jumping down a short flight of stairs shows that skateboarder is jumping.
The answer is yes.