Assertion: penguin's egg | /r/HasProperty | hard-shelled
Facets:
value: hard
type: DEGREE
Source sentences:
text: Penguins posses toothless beaked jaws and lay hard-shelled eggs that their young hatch out of.
text: Penguins have feathers, wings (although they don’t work anymore for flight, but neither do the wings of ostriches, cassowaries, emus etc.), they lay hard-shelled eggs, they have toothless bills, and probably share various other characteristics with most birds.