user: Question: WHat is the number of Population has a Density of 50.09 and a Rank larger than 30?
Columns: ['Rank', 'Province', 'Population', 'Area', 'Density']
Types: ['real', 'text', 'real', 'real', 'real']
Sample row: [1.0, 'Santo Domingo', 2374370.0, 1302.2, 1823.35]
SQL:

assistant: SELECT "Population" FROM "Table" WHERE "Density" = 50.09 AND "Rank" > 30.0;