user: Question: Which City has 600kW 500kW ERP ?
Columns: ['Region served', 'City', 'Channels ( Analog / Digital )', 'First air date', 'ERP (Analog/ Digital)', 'HAAT (Analog/ Digital) 1', 'Transmitter Location']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Cairns', 'Cairns', '33 ( UHF ) 4 11 ( VHF )', '31 December 1990', '400 kW 50kW', '1176 m 1190 m', 'Mount Bellenden Ker']
SQL:

assistant: SELECT "City" FROM "Table" WHERE "ERP (Analog/ Digital)" = '600kW 500kW';