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

### Instruction:
How many teams have a combination classification of Alejandro Valverde and a Points classification of Alessandro Petacchi?

### Inputs:
table_name: table, columns: ['Stage', 'Winner', 'General classification', 'Points classification', 'Mountains classification', 'Combination classification', 'Team classification']

### Response:
SELECT COUNT Team classification FROM table WHERE Combination classification = Alejandro Valverde AND Points classification = Alessandro Petacchi