user: ### NOW ANSWER:
Question: what is the heat when the nationality is australia and the rank is less than 1?
Columns: ['Rank', 'Heat', 'Lane', 'Nationality', 'Time']
Types: ['real', 'real', 'real', 'text', 'text']
Sample row: [1.0, 2.0, 4.0, 'Australia', '3:57.94']
SQL:

assistant: SELECT AVG("Heat") FROM "Table" WHERE "Nationality" = 'australia' AND "Rank" < 1.0;