Input (grade 13): The Right Honourable Lord Mayor of London is the legal title for the Mayor of (and head of) the City of London Corporation. The Lord Mayor of London is to be distinguished from the Mayor of London; the former is an officer only of the City of London, while the Mayor of London is the Mayor of Greater London and as such governs a much larger area.
Output (grade 9): The Lord Mayor of London is also the chancellor of the City University of London.