Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many seasons was the losing team Adelaide City?

### Inputs:
table_name: table, columns: ['Season', 'Cup FinalDate', 'WinningTeam', 'Score', 'LosingTeam', 'Location', 'Cup Final Attendance']

### Response:
SELECT COUNT Season FROM table WHERE LosingTeam = Adelaide City