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properties /facet

property token a chosen word

backrest style

also called back form

The form of a seat's back support — solid/moulded (a one-piece moulded back, the Cello monobloc), slatted, ladder-back, cross-back, mesh, upholstered, cane/rattan, tufted (buttoned) or pillow-back (loose cushion). Carried by every Seat (a chair AND a sofa both have a back-form), so it is the seat-family back slot; the present-or-absent line is Seat-vs-STOOL — a backless stool structurally CANNOT carry it (no back to describe), exactly as a flat plate has no capacity, which is why Stool is a separate queued mint, not a Seat value with a 'none'. Distinct from the apparel `back_style` (a tank-top's back cut, hosted on Tank) and `back_construction` (a shoe's heel back, on Footwear) — label-homonyms on disjoint families only (A11). Concern facet, axis-eligible (a mesh vs upholstered back is a genuine buy choice).

Backrest style is answered with one word chosen from the backrest styles list — the same word shared across every product that uses it.

It belongs to facet — one facet of a product.

asked by the kinds that answer it

1 kind answers it, each for a single value. The same question can be reused by unrelated kinds — one meaning, many homes.

answered with
token — a token — a word chosen from a fixed vocabulary, shared and filterable across products.
value domain
Backrest styles — the vocabulary its answers are drawn from.
concern
Facet — the facet of a product it belongs to.

asked by kinds that answer it

The same question can be reused by unrelated kinds — one meaning, many homes.

kindhow many
seat required · one