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

### Instruction:
Who was the writer that the director was Alice Troughton and the producer was Phil Collinson?

### Inputs:
table_name: table, columns: ['Block', 'Episode Title', 'Director', 'Writer', 'Producer', 'Code']

### Response:
SELECT Writer FROM table WHERE Producer = phil collinson AND Director = alice troughton