In this task, you're given a text which is the body of the document. Indicate your answer as "Yes" if the text is about a person, otherwise indicate your answer as "No". Don't generate anything else apart from "Yes" or "No". Pay attention that for your answer to be "Yes", the passage should be generally about a person. Mentions of people in the text don't necessarily mean the text is about a person.

Text: Hans Bock was a German painter of the 16th century who flourished at Basle where he executed within and without the Rathhaus some colossal frescoes which render his name famous. The Rathhaus also possesses a painting of the 'Calumny of Apelles' by him. His works though mannered display much power and energy.
Yes