user: Question: Total number of laps at a time of +56.977?
Columns: ['Rider', 'Manufacturer', 'Laps', 'Time', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Stefan Bradl', 'Aprilia', 20.0, '39:57.228', 2.0]
SQL:

assistant: SELECT SUM("Laps") FROM "Table" WHERE "Time" = '+56.977';