Assertion: proboscis monkey's stomach | /r/MadeOf | bacteria
Facets:
value: to break down their food
type: PURPOSE
value: for digesting the tough cellulose
type: PURPOSE
Source sentences:
text: The pot-bellied appearance of the proboscis monkey is due to its specialized chambered stomach, which contains bacteria for digesting the tough cellulose found in leaves.
text: They have large, chambered stomachs that contain bacteria to break down their food.