Assertion: adolescent's brain | /r/CapableOf | reach 90% of its adult size
Facets:
value: by the time
type: TEMPORAL
Source sentences:
text: The brain reaches 90% of its adult size by the time a person is six years of age.
text: While significant growth occurs early on—the brain reaches 90 percent of its adult size by the age of 6—a second wave takes place in the years before puberty.