QUESTION: Given the sentence "A man is doing tricks on a bike and is very high in the air." is it true that "A man rides an elephant."?

Let's solve it slowly: If one is riding an elephant they are not doing tricks on a bike.
The answer is no.

[QUESTION] Premise: "A woman in blue clothing smiling as people in the background walk by."
Based on this premise, can we conclude that the hypothesis "The female was  smiling in the crowded area." is true?
Options:
- yes
- it is not possible to tell
- no
A woman denote female and in both sentence the female was smiling in the crowd.
The answer is yes.

Q: Test for natural language inference.
Premise: "A man is filling cups up from a red drink machine."
Hypothesis: "The man is clothed."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: The man filling cups is probably working and most people working are clothed.
The answer is yes.

QUESTION: If "A brown-haired male singing while playing a guitar." does that mean that "A man busks in a subway."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A person can be singing and playing a guitar in many places not just in a subway.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A man in a black and white plaid shirt is sitting at a table in the restaurant ordering food." can we conclude that "A man sleeps in a hammock."?
Options:
- yes
- it is not possible to tell
- no
One sitting in a restaurant implies he is inside and cannot be sleeping outside on a hammock.
The answer is no.

Q: Given the sentence "A crowd awaits for a train as it enters the station." can we conclude that "A crowd is waiting for a train."?
Options:
- yes
- it is not possible to tell
- no
A:
If a crowd awaits for a train then a crowd is waiting for a train.
The answer is yes.