user: Question: How many places have Yamaha as the machine, and 89.85mph as the speed?
Columns: ['Place', 'Rider', 'Country', 'Machine', 'Speed', 'Time', 'Points']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'Giacomo Agostini', 'Italy', 'MV Agusta', '102.03mph', '1:50.56.8', 15.0]
SQL:

assistant: SELECT COUNT("Place") FROM "Table" WHERE "Machine" = 'Yamaha' AND "Speed" = '89.85mph';