Assertion: male lion | /r/CapableOf | begin to age
Facets:
Source sentences:
text: They begin to age and weaken at between 10 and 15 years of age at the latest.
text: They begin to age and weaken between 10 and 15 years of age at the latest, if they have not already been critically injured while defending the pride (once ousted from a pride by rival males, male lions rarely manage a second take-over).