Assertion: emperor penguin's plumage | /r/CapableOf | waterproof downy underlayer
Facets:
Source sentences:
text: Conversely, the plumage is flattened in water, thus waterproofing the skin and the downy underlayer.
text: Conversely, the plumage is flattened in water, thus waterproofing the pores and skin and the downy underlayer.