user: Question: What were the rank points when the score was 7 and the total was 15?
Columns: ['Shooter', 'Event', 'Rank points', 'Score points', 'Total']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Chen Ying ( CHN )', 'WCF 2007', 'Defending champion', 'Defending champion', 'Defending champion']
SQL:

assistant: SELECT "Rank points" FROM "Table" WHERE "Total" = '15' AND "Score points" = '7';