Task: Question Understanding
Input (English): Context : Enrico Letta was born in Pisa, Tuscany, to Giorgio Letta, an Abruzzo-born professor of mathematics who teaches probability theory at the University of Pisa (member of the Accademia dei Lincei and of the Accademia nazionale delle scienze), and Anna Banchi, a Sardinian born in Sassari and raised in Porto Torres of Tuscan origins. 
Question : What was Enrico Letta's career?
Output (English): occupation