Q: Can we conclude from "Two people on dirt bikes jumping dirt ramps with several people in the background." that "The dirt bikes are brand new."?
Options:
- yes
- no
- it is not possible to tell
A: People ride dirt bikes does not imply the bikes are new.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A man performs a skateboard trick."
Hypothesis: "The man has been skateboarding for years."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Doing a skateboard trick does not mean that the man has been skateboarding for years.
The answer is it is not possible to tell.

[QUESTION] If "Two girls admiring jewelry worn by someone on their hands." does that mean that "The girls are looking at the jewelry."?
Options:
- yes
- it is not possible to tell
- no
The girls would need to be looking at the jewelry to be admiring the jewelry.
The answer is yes.

Q: Premise: "A man walks across a city street on a sunny day."
Hypothesis: "A man walks quickly to an appointment."
Do we know that the hypothesis entailed by the premise?
A: Walking across a city street does not mean that he is going for an appointment.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A person paddling a boat."
Hypothesis: "The guy on the boat is moving."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A person paddling a boat does not indicate that the guy on the boat is moving.
The answer is it is not possible to tell.

QUESTION: Given the sentence "The girl is taking her hair out of the water." can we conclude that "The girl is sitting in a tree."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
The girl sitting in a tree totally contradicts the girl taking her hair out of water.
The answer is no.