user: Question: who is the manufacturer is no.50?
Columns: ['Season', 'Driver', 'Owner', 'No.', 'Manufacturer', 'Starts', 'Wins', 'Top Tens', 'Poles', 'Points (margin)']
Types: ['real', 'text', 'text', 'real', 'text', 'text', 'real', 'real', 'real', 'text']
Sample row: [1995.0, 'Mike Skinner', 'Richard Childress', 3.0, 'Chevrolet', '20 (of 20)', 8.0, 18.0, 7.0, '3224 (126)']
SQL:

assistant: SELECT "Manufacturer" FROM "Table" WHERE "No." = 50.0;