Assertion: english concertina | /r/HasAspect | 48 keys
Facets:
value: with a range of 3½ octaves
type: OTHER
value: normally
type: DEGREE
Source sentences:
text: Normally the English concertina has 48 keys, but some models had 56.
text: The English concertina has 48 keys, with a range of 3½ octaves.