what is the heat when the nationality is australia and the rank is less than 1?
CREATE TABLE table_13860 (
    "Rank" real,
    "Heat" real,
    "Lane" real,
    "Nationality" text,
    "Time" text
)
SELECT AVG("Heat") FROM table_13860 WHERE "Nationality" = 'australia' AND "Rank" < '1'
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 heat when the nationality is australia and the rank is less than 1? ### Input: CREATE TABLE table_13860 (
    "Rank" real,
    "Heat" real,
    "Lane" real,
    "Nationality" text,
    "Time" text
) ### Response: SELECT AVG("Heat") FROM table_13860 WHERE "Nationality" = 'australia' AND "Rank" < '1'