Assertion: diphthong's vowel | /r/HasAspect | one target tongue position
Facets:
Source sentences:
text: While "pure" vowels are said to have one target tongue position, diphthongs have a moving tongue.
text: While "pure" vowels, or monophthongs, are said to have one target tongue position, diphthongs have two target tongue positions.
text: While "pure" vowels, or monophthongs, are said to have one target tongue position, diphthongs have two target tongue positions.