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_99 (chorley INTEGER, preston VARCHAR, west_lancashire VARCHAR)
### Question:
What is the lowest Chorley with a 6 Preston and a 4 for West Lancashire?
### Answer:
SELECT MIN(chorley) FROM table_name_99 WHERE preston = 6 AND west_lancashire < 4