Assertion: neck | /r/CapableOf | dilate to a diameter of more than 10 cm
Facets:
value: during childbirth
type: TEMPORAL
Source sentences:
text: During childbirth, the cervix must dilate to a diameter of more than 10 cm (3.9 in) to accommodate the head of the fetus as it descends from the uterus to the vagina.