QUESTION: Given the sentence "A woman with glasses is teaching a class on a stage." is it true that "There is a tall woman with black glasses teaching a class full of children."?

Let's solve it slowly: Not all women are tall. Not all classes are full of children.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "A man hanging by one arm off of a pole from a building." that "The man is sitting on a couch."?
Options:
- yes
- no
- it is not possible to tell
You cannot be hanging off a pole and sitting at a couch at the same time.
The answer is no.

Q: Given the sentence "A group of women chain together to block the opposing roller derby team." can we conclude that "A group of people are playing a sport."?
Options:
- yes
- it is not possible to tell
- no
A: A group of women can be described as a group of people. Roller derby is a sport.
The answer is yes.

QUESTION: Can we conclude from "Two people are near a wooden building wearing backpacks." that "Two hikers with backpacks pause near a barn."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: People is a vague term so you cannot assume they are hikers. There are different types of wooden buildings besides a barn.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "Two boys cannon balling into a lake near a red paddle boat."
Hypothesis: "Two boys jumped in the water near the red boat."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Two boys cannon ball jumped into a lake near a red boat.
The answer is yes.

Q: Premise: "A young male who appears to be in his late 20's or early 30's is smiling while about to bite into a sandwich."
Hypothesis: "The man is dancing."
Do we know that the hypothesis entailed by the premise?
A:
One can be either dancing or be about to bite into a sandwich.
The answer is no.