Assertion: krill | /r/CapableOf | serve as main food source
Facets:
value: for many
type: TRANSITIVE-OBJECT
Source sentences:
text: These crustaceans are the center of the Antarctic marine food web, serving as a main food source for many of the region’s iconic animals, including blue whales; fur seals; and gentoo, chinstrap, and Adélie penguins.