Assertion: otter's coat | /r/CapableOf | form a layer of cozy insulation
Facets:
value: to keep them
type: PURPOSE
Source sentences:
text: Since they don’t have a layer of blubber to keep them warm like most of their marine mammal cousins, these thick coats actually have the ability to trap air, forming a layer of cozy insulation to keep them otterly comfy.