Represent the given dialogue about an image, which is used for image retrieval: Q:what is ubuntu
A:i have no idea but there is a sign hanging up saying they will help with ubuntu installation
Q:are there people in the office
A:there is 1 person, yes
Q:man or woman
A:man
Q:what is he wearing
A:a polo and khakis
Q:what color polo
A:it is black
Q:what color khakis
A:really light tan
Q:are there any windows
A:yes, there are
Q:are there curtains on the windows
A:no curtains they are up high
Q:can you see the walls
A:yes, i can
Q:what color are the walls
A:they are white


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