Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_57 (against INTEGER, difference VARCHAR, played VARCHAR)
### Question:
How many against have a difference of 6, with a played greater than 19?
### Answer:
SELECT SUM(against) FROM table_name_57 WHERE difference = "6" AND played > 19