what is the debut when the play er is radoslava topalova and the years played is less than 2?
CREATE TABLE table_56699 (
    "Player" text,
    "W-L (Total)" text,
    "W-L (Singles)" text,
    "W-L (Doubles)" text,
    "Ties" real,
    "Debut" real,
    "Years Played" real
)
SELECT AVG("Debut") FROM table_56699 WHERE "Player" = 'radoslava topalova' AND "Years Played" < '2'
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 debut when the play er is radoslava topalova and the years played is less than 2? ### Input: CREATE TABLE table_56699 (
    "Player" text,
    "W-L (Total)" text,
    "W-L (Singles)" text,
    "W-L (Doubles)" text,
    "Ties" real,
    "Debut" real,
    "Years Played" real
) ### Response: SELECT AVG("Debut") FROM table_56699 WHERE "Player" = 'radoslava topalova' AND "Years Played" < '2'