What is the average BW 2013 ranking of Texas, Fort Worth, which has an AE 2011 ranking of 1000 and an FT 2011 ranking less than 1000?
CREATE TABLE table_37646 (
    "Location (State, City)" text,
    "USN 2013" real,
    "BW 2013" real,
    "Forbes 2011" real,
    "Ec 2013" real,
    "FT 2011" real,
    "AE 2011" real,
    "CNN 2011" real,
    "BI 2013" real,
    "ARWU 2012" real
)
SELECT AVG("BW 2013") FROM table_37646 WHERE "AE 2011" = '1000' AND "Location (State, City)" = 'texas, fort worth' AND "FT 2011" < '1000'
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 average BW 2013 ranking of Texas, Fort Worth, which has an AE 2011 ranking of 1000 and an FT 2011 ranking less than 1000? ### Input: CREATE TABLE table_37646 (
    "Location (State, City)" text,
    "USN 2013" real,
    "BW 2013" real,
    "Forbes 2011" real,
    "Ec 2013" real,
    "FT 2011" real,
    "AE 2011" real,
    "CNN 2011" real,
    "BI 2013" real,
    "ARWU 2012" real
) ### Response: SELECT AVG("BW 2013") FROM table_37646 WHERE "AE 2011" = '1000' AND "Location (State, City)" = 'texas, fort worth' AND "FT 2011" < '1000'