Q: Can we conclude from "A man is rollerblading down a handrail on some stairs." that "A man is using his feet to move down a handrail."?
Options:
- yes
- no
- it is not possible to tell
A: A man if rollerblading down a handrail must be using his feet and rollerblading down on some stairs is equivalent to moving down.
The answer is yes.

QUESTION: Test for natural language inference.
Premise: "Beautiful scenery with a boat on the lake."
Hypothesis: "The boat is about to sink."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A boat on a lake is not necessarily about to sink.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A man in black sings with a band in the back."
Hypothesis: "A man in black sings with others in the background playing instruments."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The man in black is the lead singer and his band plays other instruments behind him.
The answer is yes.

Q: Premise: "An older man cutting up a bunch of coconuts."
Hypothesis: "The old man is chopping wood."
Do we know that the hypothesis entailed by the premise?
A: Coconuts are not wood. Chopping wood is done with an axe. Cutting coconuts is done with a knife.
The answer is no.

QUESTION: Premise: "Little boy rides around playground on a motorized bike."
Hypothesis: "Boy drives a car."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: Riding is not the same as driving. A motorized bike is not the same as a car.
The answer is no.

QUESTION: Given the sentence "A batter in a white uniform takes a huge swing at the ball." is it true that "A person is trying to hit the ball."?

Let's solve it slowly:
Just because he takes a swing doesn't mean he's trying to hit the ball.
The answer is it is not possible to tell.