QUESTION: Given the sentence "A man wearing a black jacket biking in front of a medical arts building." can we conclude that "An elderly man chains his bike outside the building."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: The man cannot be biking while he chains his bike up.
The answer is no.

[QUESTION] Premise: "A man is standing outside a building while another man in a military uniform leans against a low wall."
Hypothesis: "Two men fight at the park."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Two people wouldn't be fighting if one same stands against a building and the other leans against a wall.
The answer is no.

Q: Given the sentence "A female singer and a male saxophonist are performing on stage." can we conclude that "A man is playing the piano on stage."?
Options:
- yes
- it is not possible to tell
- no
A: The male saxophonist it likely not playing the piano on stage at the same time.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "A man stands and reads something by a railing overlooking a town."
Hypothesis: "A man stands outside on a sunny day."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Standing by a railing is not done solely on sunny days.
The answer is it is not possible to tell.

[QUESTION] Premise: "A man in a yellow jacket sits next to a person in a brown gorilla suit."
Hypothesis: "Two kids are dressed for halloween."
Do we know that the hypothesis entailed by the premise?
There can be a man in a yellow jacket sitting next to a person in a brown gorilla suit or two kids dressed for Halloween.
The answer is no.

Q: Test for natural language inference.
Premise: "The surfer wearing the blue suit on the colorful surfboard is catching a wave."
Hypothesis: "The surfer is doing a trick."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A:
The surfer is catching a wave but is not necessarily doing a trick.
The answer is it is not possible to tell.