Assertion: beaver's litter | /r/HasProperty | produced
Facets:
value: annually
type: TEMPORAL
value: each year
type: TEMPORAL
Source sentences:
text: Although female is able to have new litter every 7 to 8 weeks, only 2 to 3 litters will be produced each year.
text: One litter is produced annually, usually containing two to six blind, hairless and helpless young.