Metropolitan cities of Italy

Columns: Metropolitan city | Area ( km² ) | Population | Population Density ( /km² ) | Date | Mayor
Florence Firenze | 3,514 | 1,007,435 | 287 | 3 April 2014 | Dario Nardella ( PD ) | Bologna Bologna | 3,702 | 1,005,831 | 271 | 3 April 2014 | Virginio Merola ( PD ) | Genoa Genova | 1,839 | 864,008 | 470 | 3 April 2014 | Marco Bucci ( FI ) | Venice Venezia | 2,462 | 858,455 | 349 | 3 April 2014 | Luigi Brugnaro ( Independent ) | Messina Messina | 3,266 | 647,477 | 198 | 4 August 2015 | Cateno De Luca ( UdC ) | Reggio Calabria Reggio Calabria | 3,183 | 558,959 | 176 | 3 April 2014 | Giuseppe Falcomatà ( PD ) | Cagliari Cagliari | 1,248 | 431,302 | 346 | 4 February 2016 | Massimo Zedda ( Independent )

Example questions:
What job did the mayor of a Metropolitan city of Italy with the highest population density do before being mayor ? | Which islands are included in the area that has a mayor of a Metropolitan city of Italy born 18 March 1972 ? | What is the area of the Metropolitan city of Italy that has been represented by the same mayor on 3 separate occasions ? | When was the party represented by the 39th mayor of a Metropolitan city of Italy founded ? | When was the mayor of a Metropolitan city of Italy with the lowest population density elected ?

Answers:
prosecutor | Aeolian Islands | 5,009 | 4 October 2009 | October 29 , 2014