user: Question: What is the number of successes for rockets that have more than 3 launches, were based in russia, are type soyuz and a rocket type of soyuz-u?
Columns: ['Rocket', 'Country', 'Type', 'Launches', 'Successes', 'Failures', 'Partial failures']
Types: ['text', 'text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['Ariane 5ECA', 'Europe', 'Ariane 5', 6.0, 6.0, 0.0, 0.0]
SQL:

assistant: SELECT SUM("Successes") FROM "Table" WHERE "Launches" > 3.0 AND "Country" = 'russia' AND "Type" = 'soyuz' AND "Rocket" = 'soyuz-u';