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

### Instruction:
What is the average Yards with an average of less than 4 and the long is 12 with less than 29 attempts?

### Inputs:
table_name: table, columns: ['Player', 'Attempts', 'Yards', 'Average', 'Long', 'Touchdowns']

### Response:
SELECT AVG Yards FROM table WHERE Average < 4 AND Long = 12 AND Attempts < 29