Assertion: opossum's number | /r/HasProperty | determined by the number of teats
Facets:
value: in the pouch
type: LOCATION
Source sentences:
text: As many as 25 young may be born in each litter, but the maximum number raised by the mother is determined by the number of teats (normally 13) in the pouch, and the average number of pouch young is usually 7 or 8.