A man in a blue shirt with glasses and a shaved down head is looking at a microscope in a laboratory .
It is improbable that there is a man in a room who is looking at a piece of equipment .
It is highly likely that there is a man in a room who is looking at a piece of equipment .
It is improbable that there is a man in a room who is looking at a piece of equipment .
There is a man in a room who is looking at a piece of equipment .