user: Question: Who was the winner in stage 7 with a general classification of Pavel Tonkov?
Columns: ['Stage', 'Winner', 'General classification', 'Points classification', 'Mountains classification', 'Intergiro classification', 'Trofeo Fast Team']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Mario Cipollini', 'Mario Cipollini', 'Mario Cipollini', 'not awarded', 'Dimitri Konyshev', 'Saeco']
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "General classification" = 'Pavel Tonkov' AND "Stage" = '7';