Task: Question Understanding
Input (English): Context : Prince Pyotr Nikolayevich Gruzinsky (Georgian: პეტრე ნიკოლოზის ძე გრუზინსკი; Russian: Пётр Николаевич Грузинский; literally ``Peter of Georgia''; 1837--1892) was a Georgian royal prince (batonishvili) from the House of Mukhrani of the royal Bagrationi dynasty. 
Question : What gender class does Pyotr Nikolayevich Gruzinsky belong to?
Output (English): sex or gender