Task: Question Generation
Input (English): Context : Intars Busulis (born 2 May 1978 in Talsi, Latvia) is a Latvian singer who represented Latvia at the Eurovision Song Contest 2009 in Moscow, Russia with the song Probka (Russian for ``Traffic jam''). 
Subject : Intars Busulis 
Relation : occupation
Output (English): What was Intars Busulis's occupation?