user: Question: What is the number of justin jeffries?
Columns: ['Position', 'Number', 'Name', 'Height', 'Weight', 'Class', 'Hometown', 'Games↑']
Types: ['text', 'real', 'text', 'text', 'real', 'text', 'text', 'real']
Sample row: ['QB', 5.0, 'Mike Hartline', '6\'6"', 205.0, 'RS-So.', 'Canton, Ohio', 1.0]
SQL:

assistant: SELECT "Number" FROM "Table" WHERE "Name" = 'justin jeffries';