Assertion: fox's litter | /r/MadeOf | one to seven pups
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: They mate from December to February, when they use larger family dens.[clarification needed] Litters are born throughout March and April, usually containing one to seven pups, and average four pups.
text: The young are born in burrows, the litters containing two to seven pups; gestation lasts 57 to 70 days.