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

### Instruction:
Which Pick # has a League from of ontario hockey league, a Nationality of united states, and a Team from of brampton battalion?

### Inputs:
table_name: table, columns: ['Pick #', 'Player', 'Nationality', 'Position', 'Team from', 'League from']

### Response:
SELECT COUNT Pick # FROM table WHERE League from = ontario hockey league AND Nationality = united states AND Team from = brampton battalion