Assertion: bracken's frond | /r/CapableOf | die in winter
Facets:
Source sentences:
text: In northern climates, the fronds die back in winter; new fronds emerge in early spring.
text: Then by late summer or early, the mature fronds will turn brown and eventually die back by the winter.  
text: Fronds turn brown and die back in the winter, although rhizomes are still alive.