People gather around a conference table are at a conference table.
This justifies what answer for what question? Q & A: 
Given the sentence "People gather around a yellow conference table." is it true that "People are at a conference table."?
yes
People gather around a conference table are at a conference table.
This justifies what answer for what question? Q & A: 
user
Given the sentence "People gather around a yellow conference table." is it true that "People are at a conference table."?
yes
assistant
People gather around a conference table are at a conference table.
This justifies what answer for what question? Q & A: 
Given the sentence "People gather around a yellow conference table." is it true that "People are at a conference table."?
yes