How many numbers are given for losses by the Keighley Cougars?
CREATE TABLE table_13015539_1 (
    lost VARCHAR,
    club VARCHAR
)
SELECT COUNT(lost) FROM table_13015539_1 WHERE club = "Keighley Cougars"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many numbers are given for losses by the Keighley Cougars? ### Input: CREATE TABLE table_13015539_1 (
    lost VARCHAR,
    club VARCHAR
) ### Response: SELECT COUNT(lost) FROM table_13015539_1 WHERE club = "Keighley Cougars"