[QUESTION] Premise: "A large group of people are congregated outside."
Based on this premise, can we conclude that the hypothesis "There is a large group of people." is true?
Options:
- yes
- it is not possible to tell
- no
There has to be a large group of people in order to be congregated.
The answer is yes.

[QUESTION] Test for natural language inference.
Premise: "A surfer glides along the top of a wave on a clear day."
Hypothesis: "A surfer is showing his friend how to surf."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Someone surfing on a clear day is not always showing his friend how to surf.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A man wearing a black and white striped shirt with brown pants." can we conclude that "A guy is wearing clothing."?
Options:
- yes
- it is not possible to tell
- no
A striped shirt and brown pants are clothing. A guy is another term for a man.
The answer is yes.

[QUESTION] If "Three guys have a conversation in a office." does that mean that "Three men sit silently at their desks."?
Options:
- yes
- it is not possible to tell
- no
One can not be having a conversation and sit silently simultaneously.
The answer is no.