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

### Instruction:
What is the total of yards when asst. is 19, totaltk is 60 and sack is more than 0?

### Inputs:
table_name: table, columns: ['Player', 'Tackles', 'Asst.', 'TotalTK', 'Sack', 'Yards', 'FumR']

### Response:
SELECT SUM Yards FROM table WHERE Asst. = 19 AND TotalTK = 60 AND Sack > 0