Assertion: vowel | /r/CapableOf | use the vowel chart
Facets:
value: to alternate in the audio
type: PURPOSE
Source sentences:
text: When you raise your tongue toward the roof of your mouth, you are making a more CLOSED vowel sound Use the vowel chart to alternate back and forth between the /a/ and /u/ vowels as I do in the audio below and try to develop an awareness of height change.