Assertion: emperor penguin's egg | /r/HasProperty | balanced on foot
Facets:
value: to prevent them
type: PURPOSE
Source sentences:
text: Eggs and chicks are balanced on the feet to prevent them from coming into contact with the ice.
text: View Images Male emperor penguins at the Atka Bay colony, each with an egg balanced on his feet, huddle to endure the two-month polar night.