Assertion: vowel's formant | /r/HasProperty | consistent
Facets:
value: in close vowels
type: OTHER
Source sentences:
text: In close vowels, also known as high vowels, such as [i] and [u], the first formant is consistent with the tongue being positioned close to the palate, high in the mouth, whereas in open vowels, also known as low vowels, such as [a], F1 is consistent with the jaw being open and the tongue being positioned low in the mouth.