What is the sum of Long for derrick locke?
CREATE TABLE table_36904 (
    "Name" text,
    "GP-GS" text,
    "Gain" real,
    "Loss" real,
    "Long" real,
    "Avg/G" real
)
SELECT SUM("Long") FROM table_36904 WHERE "Name" = 'derrick locke'
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: What is the sum of Long for derrick locke? ### Input: CREATE TABLE table_36904 (
    "Name" text,
    "GP-GS" text,
    "Gain" real,
    "Loss" real,
    "Long" real,
    "Avg/G" real
) ### Response: SELECT SUM("Long") FROM table_36904 WHERE "Name" = 'derrick locke'