property token a chosen word
portafilter size
The portafilter/basket diameter — a token from PortafilterSizes. Optional: a semi-automatic machine states it (54 mm Breville, 58 mm Gaggia), but a super-automatic bean-to-cup brews from an internal group with no portafilter and leaves it empty (so it is not required, by L4/A3). Homes on EspressoMachine.
Portafilter size is answered with one word chosen from the portafilter sizes list — the same word shared across every product that uses it.
It belongs to measurement — its measurable, physical facts.
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 |
|---|---|
| espresso machine | one |