What was the position for albums made by elbow with under 424,000 sales?
CREATE TABLE table_5521 (
    "Position" real,
    "Album title" text,
    "Artist" text,
    "Sales" real,
    "Peak" text
)
SELECT AVG("Position") FROM table_5521 WHERE "Sales" < '424,000' AND "Artist" = 'elbow'
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 was the position for albums made by elbow with under 424,000 sales? ### Input: CREATE TABLE table_5521 (
    "Position" real,
    "Album title" text,
    "Artist" text,
    "Sales" real,
    "Peak" text
) ### Response: SELECT AVG("Position") FROM table_5521 WHERE "Sales" < '424,000' AND "Artist" = 'elbow'