user: Question: What is the total number of 3rd place finishes for racers with 0 titles?
Columns: ['Rider', 'Years active', 'Races', 'Wins', '2nd pl.', '3rd pl.', 'Titles.']
Types: ['text', 'text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Norick Abe', '2005-2006', 47.0, 0.0, 0.0, 0.0, 0.0]
SQL:

assistant: SELECT SUM("3rd pl.") FROM "Table" WHERE "Titles." < 0.0;