Man seated in a uniform that says 'Polizes' on the shoulder looking out a window with a clipboard, some papers, and a computer in front of him.
The man is playing a guitar.
The man is either looking out a window or playing a guitar; since he is wearing a uniform indicating that he works as a 'Polizes' and not as a musician, he cannot be doing both activities simultaneously.
A person wearing a uniform that says 'Polizes' and looking out a window is unlikely to be playing a guitar.
If the man is playing a guitar, he probably does not have a clipboard, papers, and a computer in front of him.