Assertion: voice's use | /r/CapableOf | become controversial
Facets:
Source sentences:
text: In particular, the use of the term head register has become controversial since vocal registration is more commonly seen today as a product of laryngeal function.
text: In particular, the use of the terms chest register and head register have become controversial since vocal registration is more commonly seen today as a product of laryngeal function that is unrelated to the physiology of the chest, lungs, and head.
text: In particular, the use of the term chest register has become controversial since vocal registration is more commonly seen today as a product of laryngeal function that is unrelated to the physiology of the chest and lungs.