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

### Instruction:
What's the name of the competition where the nationality is Brazil and the voting percentage is n/a?

### Inputs:
table_name: table, columns: ['Rank', 'Player', 'Nationality', 'Team', 'Opponent', 'Score', 'Competition', 'Vote percentage']

### Response:
SELECT Competition FROM table WHERE Vote percentage = N/A AND Nationality = Brazil