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Type of the house

4 castle
disadvantage1 it costs high if it maintains many rooms well.
disadvantage2 It takes lots of time to build it.
Roma can't be built in a day.

5 container house
It's difficult to obtain a building permit.
In 2 or 3 years, it becomes rust. Rust meams
reddish substans that forms on metal when it comes in contact with moisture, air or water.