Assertion: girl | /r/CapableOf | start their periods
Facets:
value: as early as fifth grade
type: TEMPORAL
value: commonly
type: TEMPORAL
Source sentences:
text: Girls now commonly start their periods as early as fifth grade, so even if your daughter looks as though she's nowhere near puberty, her schoolmates' accounts may confuse and upset her if you haven't given her the basic information first.
text: When a girl starts having periods it is the sign that she has started ovulating.