user: Question: What is the state of the city of Denver, which has a rank less than 10?
Columns: ['Rank', 'City', 'State', 'Population', 'Metro Population of 4 aspects']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 'Phoenix', 'Arizona', 1488750.0, 4329534.0]
SQL:

assistant: SELECT "State" FROM "Table" WHERE "Rank" < 10.0 AND "City" = 'Denver';