user: Question: WHAT IS THE AVERAGE NANGUN WITH A RANK LARGER THAN 2, TOTAL OF 17.85?
Columns: ['Rank', 'Athlete', 'Nanquan', 'Nangun', 'Total']
Types: ['real', 'text', 'real', 'real', 'real']
Sample row: [1.0, 'Willy Wang ( PHI )', 9.74, 9.7, 19.44]
SQL:

assistant: SELECT AVG("Nangun") FROM "Table" WHERE "Rank" > 2.0 AND "Total" = 17.85;