One chair that becomes two.
Originally a commission of eight chairs. But looking at the the actual site and how the space is lived, it was noticed that only four chairs are in constant use. When the dinner table is extended for more people, additional chairs are needed. Instead of storing those in the basement or the attic, why could they not be incorporated into the ones of the dining room?
Hence the chairs „multiply“ when guests are over (and clear space in the attic)