Assertion: bracken's frond | /r/CapableOf | turn yellow
Facets:
value: usually
type: DEGREE
value: before becoming dark reddish-brown
type: TEMPORAL
Source sentences:
text: In September, shortening days and colder temperatures trigger the withdrawal of chlorophyll from the fronds, which turn bright yellow and then brown, as they die off for the winter.
text: The frond usually turns yellow before becoming dark reddish-brown.
text: The frond usually turns yellow before becoming dark reddish-brown.