Assertion: vowel | /r/HasProperty | derived
Facets:
value: from only ten basic sounds
type: OTHER
Source sentences:
text: All the 24 vowel sounds are derived from only ten basic sounds.
text: The traditionally accepted account[note 2] on the design of the letters is that the vowels are derived from various combinations of the following three components:
text: All the 24 vowel sounds are derived from only ten basic sounds.