user: Question: what is the total number of seats 2006 that has parties and voter turnout in % and whose %2006 is greater than 51.5?
Columns: ['Parties and voter communities', '% 2006', 'Seats 2006', '% 2001', 'Seats 2001']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['SPD', 38.9, 11.0, 39.0, 12.0]
SQL:

assistant: SELECT SUM("Seats 2006") FROM "Table" WHERE "Parties and voter communities" = 'voter turnout in %' AND "% 2006" > 51.5;