user: Question: what's the width with frame size being 4.5K
Columns: ['Frame size', 'Width', 'Height', 'Mpix', 'Aspect Ratio', 'max. fps', 'lowest possible REDCODE at 24 fps']
Types: ['text', 'real', 'real', 'text', 'text', 'real', 'text']
Sample row: ['4.5K', 4480.0, 1920.0, '8.6', '2.33:1', 30.0, '8:1']
SQL:

assistant: SELECT "Width" FROM "Table" WHERE "Frame size" = '4.5K';