[Q] Given the sentence "Many ethnicities are holding up flags." can we conclude that "Many people of various ethnicities are holding up flags at a conference."?
Options:
- yes
- it is not possible to tell
- no
[A] Holding up flags does not imply that it is happening at a conference.
The answer is it is not possible to tell.

[Q] Given the sentence "A boy scout sitting in a chair outside of a tent on stage." can we conclude that "A boy scout is sitting alone."?
Options:
- yes
- it is not possible to tell
- no
[A] A boy scout can sit and not necessarily be sitting alone.
The answer is it is not possible to tell.

[Q] Given the sentence "A man on a roof in a 3rd world country." is it true that "The man is riding a bus."?
[A] A man cannot be on a roof and be riding a bus simultaneously.
The answer is no.