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

### Instruction:
What is the Series for the uefa cup, in the 2006–07 season, and a Round of group, and an opponent of az?

### Inputs:
table_name: table, columns: ['Season', 'Competition', 'Round', 'Opponent', 'Series']

### Response:
SELECT Series FROM table WHERE Competition = uefa cup AND Season = 2006–07 AND Round = group AND Opponent = az