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

### Instruction:
how many millions of north american viewers had the episode called "smother"?

### Inputs:
table_name: table, columns: ['No.', 'Title', 'Directed by', 'Written by', 'U.S. viewers (million)', 'Original air date', 'Production code']

### Response:
SELECT U.S. viewers (million) FROM table WHERE Title = "Smother"