QUESTION: Given the sentence "A tan dog is running along side another dog outside." is it true that "Two big dogs are chasing after the same ball."?

Let's solve it slowly: Not all dogs are big. The fact that one dog is running along side another dog is not indicative of either of them chasing a ball.
The answer is it is not possible to tell.

[QUESTION] If "Two men are on board an open red boat with a flag." does that mean that "Two men are on a chinese boat."?
Options:
- yes
- it is not possible to tell
- no
The open red boat does not have to be a Chinese boat.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A skateboarder wearing a black shirt is doing a trick."
Hypothesis: "A person is skateboarding."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A skateboarder is a person and doing a trick on a skateboard constitutes skateboarding.
The answer is yes.

QUESTION: Premise: "A little girl wears a helmet and prepares to ride a scooter."
Hypothesis: "The girl prepares to ride a bike."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: The girl either prepares to ride a scooter or a bike.
The answer is no.

[QUESTION] Premise: "Several people are sitting at a table looking at colored index cards."
Hypothesis: "People are looking at index cards."
Do we know that the hypothesis entailed by the premise?
Several people indicate people in general and they are looking are index cards in both sentences.
The answer is yes.

Q: Can we conclude from "Dirt bike rider jumping down the hill." that "The dirt bike rider is trying to cut a few seconds off his best time."?
Options:
- yes
- no
- it is not possible to tell
A:
Not all riders are trying to cut seconds off their time.
The answer is it is not possible to tell.