Premise: Concrete . Today , large concrete structures ( for example , dams and multi-storey car parks ) are usually made with reinforced concrete . Shed . The main types of shed construction are metal sheathing over a metal frame , plastic sheathing and frame , all-wood construction ( the roof may be asphalt shingled or sheathed in tin ) , and vinyl-sided sheds built over a wooden frame .
Hypothesis: Sheds can only be made with one material: cement.
Label: NEUTRAL