Assertion: mastiff's dog | /r/CapableOf | be prone to gaining weight
Facets:
Source sentences:
text: Older dogs too are more prone to gaining weight and again it's essential they be fed and exercised accordingly because obesity can shorten a dog's life by several years.
text: Older dogs too are more prone to gaining weight and again it's essential they be fed and exercised accordingly because obesity can shorten a dog's life by several years.