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

### Instruction:
Name the story number for paul cornell

### Inputs:
table_name: table, columns: ['Story No.', 'Episode', 'Title', 'Directed by', 'Written by', 'UK viewers (million)', 'AI (%)', 'Original air date', 'Production code']

### Response:
SELECT Story No. FROM table WHERE Written by = Paul Cornell