user: ### NOW ANSWER:
Question: What is the rank of the cinema when the headquarters are in toronto, on and the screens is less than 1438?
Columns: ['Rank', 'Circuit', 'Headquarters', 'Screens', 'Sites']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 'Regal Entertainment Group', 'Knoxville,TN', 7367.0, 580.0]
SQL:

assistant: SELECT AVG("Rank") FROM "Table" WHERE "Headquarters" = 'toronto, on' AND "Screens" < 1438.0;