Name the the average Lib Dem with Conservative smaller than 0?
CREATE TABLE table_13699 (
    "Year" real,
    "Labour" real,
    "Lib Dem" real,
    "Green" real,
    "IWCA" real,
    "Independent" real,
    "Conservative" real
)
SELECT AVG("Lib Dem") FROM table_13699 WHERE "Conservative" < '0'
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: Name the the average Lib Dem with Conservative smaller than 0? ### Input: CREATE TABLE table_13699 (
    "Year" real,
    "Labour" real,
    "Lib Dem" real,
    "Green" real,
    "IWCA" real,
    "Independent" real,
    "Conservative" real
) ### Response: SELECT AVG("Lib Dem") FROM table_13699 WHERE "Conservative" < '0'