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

### Instruction:
What round was the player Ty Lawson with a pick earlier than 18?

### Inputs:
table_name: table, columns: ['Year', 'Round', 'Pick', 'Player', 'NBA Club']

### Response:
SELECT AVG Round FROM table WHERE Player = ty lawson AND Pick < 18