how many teams played in the 2011 caf u-23 championship qualification ?
CREATE TABLE table_204_324 (
    id number,
    "team 1" text,
    "agg." text,
    "team 2" text,
    "1st leg" text,
    "2nd leg" text
)
SELECT COUNT("team 1") + COUNT("team 2") FROM table_204_324
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 teams played in the 2011 caf u-23 championship qualification ? ### Input: CREATE TABLE table_204_324 (
    id number,
    "team 1" text,
    "agg." text,
    "team 2" text,
    "1st leg" text,
    "2nd leg" text
) ### Response: SELECT COUNT("team 1") + COUNT("team 2") FROM table_204_324