user: Question: Which Mark has an Athlete of Tatyana Lebedeva?
Columns: ['Mark', 'Wind*', 'Athlete', 'Nationality', 'Venue', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['7.52m(24ft8in)', '1.4', 'Galina Chistyakova', 'Soviet Union', 'Leningrad', 'June 11, 1988']
SQL:

assistant: SELECT "Mark" FROM "Table" WHERE "Athlete" = 'Tatyana Lebedeva';