>>12355283It must meet the following:
>4 legs>inanimate>designed to be sat on>has a back support>designed for 1 person>often used in conjunction with a table but not necessarily>commonly thought of as a furniture pieceAnything less than this should not be considered a chair.
Anything more than this may be referred to as a chair, but likely has another name to distinguish it from a form with only these properties.
