user: Question: What is the average market value in billions of the company with less than 1705.35 billions in assets, sales of 175.05 billions, and is ranked less than 19?
Columns: ['Rank', 'Company', 'Headquarters', 'Industry', 'Sales (billion $)', 'Profits (billion $)', 'Assets (billion $)', 'Market Value (billion $)']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Citigroup', 'USA', 'Banking', 146.56, 21.54, 1884.32, 247.42]
SQL:

assistant: SELECT AVG("Market Value (billion $)") FROM "Table" WHERE "Assets (billion $)" < 1705.35 AND "Sales (billion $)" = 175.05 AND "Rank" < 19.0;