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

### Instruction:
Who was the aggressive rider when the sprint classification was  andré greipel and mountains classification was timothy roe?

### Inputs:
table_name: table, columns: ['Stage', 'Winner', 'General Classification', 'Mountains Classification', 'Sprint Classification', 'Young Rider Classification', 'Team Classification', 'Aggressive Rider']

### Response:
SELECT Aggressive Rider FROM table WHERE Sprint Classification = André Greipel AND Mountains Classification = Timothy Roe