user: Question: how many times is the rank less than 6, certification 2x platinum and the peak position 2?
Columns: ['Rank', 'Artist', 'Album', 'Peak position', 'Sales', 'Certification']
Types: ['real', 'text', 'text', 'text', 'real', 'text']
Sample row: [1.0, 'Bon Jovi', 'Lost Highway', '1', 300000.0, '3x Platinum']
SQL:

assistant: SELECT COUNT("Sales") FROM "Table" WHERE "Rank" < 6.0 AND "Certification" = '2x platinum' AND "Peak position" = '2';