operation mode
The wet/dry operating mode a vacuum cleaner runs in — a token from VacuumOperationModes (dry, wet-and-dry, spray-extraction). The exclusive differentia of the VacuumCleaner kind: a dry vac, a wet-&-dry vac and a carpet/sofa extraction cleaner are the same machine running in different modes (suction plus, for wet-and-dry, liquid pickup, or for extraction, spraying then extracting a solution), so they are VALUES here, not separate classes. A category discriminator (a wet-&-dry vacuum and a dry vacuum are different products/listings, never within-model buy-box versions of one vacuum), so grouped_in identity and non-axis-eligible. Required: every vacuum runs in some mode. Distinct from the food vacuum-SEALER's sealing_mode (an unrelated kitchen packing kind).
Operation mode is answered with one word chosen from the vacuum operation modes list — the same word shared across every product that uses it.
It belongs to identity — who and what it is.
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.
asked by kinds that answer it
The same question can be reused by unrelated kinds — one meaning, many homes.
| kind | how many |
|---|---|
| vacuum cleaner | required · one |