[QUESTION] Test for natural language inference.
Premise: "A person is upside down."
Hypothesis: "Doing a flip on a snowboard."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A young girl is snowboarding on a halfpipe in the Olympics.
The answer is it is not possible to tell.

Q: Given the sentence "A man wearing all black carrying a black trash bag is bending down to pick something up in a dirt lot." can we conclude that "A man is taking out the trash and bend over to pick up some litter as he passes it."?
Options:
- yes
- it is not possible to tell
- no
A: A man could be picking something else up besides some litter.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A woman wearing a tank top and gloves washing the windows on top of a train."
Hypothesis: "A woman is making the windows dirty."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A person can't be both washing windows and making windows dirty at the same time.
The answer is no.

[QUESTION] Premise: "An elderly lady washing a glass door."
Hypothesis: "A woman cleaning the smudge on her door."
Do we know that the hypothesis entailed by the premise?
An elderly lady washing a glass door doesn't mean that she is cleaning the smudge on her door.
The answer is it is not possible to tell.

Q: Premise: "Eight men in different colored gear are racing on a track."
Based on this premise, can we conclude that the hypothesis "The men are all racing." is true?
Options:
- yes
- it is not possible to tell
- no
A: The fact that eight men are on a track doesn't necessarily imply men are all racing.
The answer is it is not possible to tell.

[QUESTION] Premise: "The back of a man climbing a rock."
Hypothesis: "A man's back as he climbs a rock."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
The back of a man is equal to a man's back.
The answer is yes.