user: ### NOW ANSWER:
Question: Which B Score has a Total larger than 15.325, and an A Score smaller than 6.4?
Columns: ['Position', 'Gymnast', 'A Score', 'B Score', 'Total']
Types: ['real', 'text', 'real', 'real', 'real']
Sample row: [1.0, 'Xiao Qin ( CHN )', 6.4, 9.6, 16.0]
SQL:

assistant: SELECT SUM("B Score") FROM "Table" WHERE "Total" > 15.325 AND "A Score" < 6.4;