user: Question: What total D (max) has a taper of 1:20.047, and a C (max) bigger than 65.5?
Columns: ['Morse Taper number', 'Taper', 'B (max)', 'C (max)', 'D (max)']
Types: ['real', 'text', 'real', 'real', 'real']
Sample row: [0.0, '1:19.212', 56.5, 59.5, 10.5]
SQL:

assistant: SELECT SUM("D (max)") FROM "Table" WHERE "Taper" = '1:20.047' AND "C (max)" > 65.5;