Assertion: opossum | /r/HasAspect | up to two litters per year
Facets:
value: usually
type: TEMPORAL
value: solitary creatures
type: OTHER
Source sentences:
text: Solitary creatures, opossums can have up to two litters per year.
text: Opossums usually have two to three litters per year, with an average of seven young in each litter.