Assertion: neutral vowel | /r/CapableOf | leave front/back control
Facets:
value: to vowels
type: TRANSITIVE-OBJECT
value: to back
type: MANNER
value: /back
type: OTHER
value: to any grammatical front
type: TRANSITIVE-OBJECT
Source sentences:
text: As shown in the examples, neutral vowels make the system unsymmetrical, as they are front vowels phonologically, but leave the front/back control to any grammatical front or back vowels.