Assertion: emperor penguin | /r/HasProperty | underwater
Facets:
value: for 18 minutes
type: TEMPORAL
Source sentences:
text: To stay underwater that long, they have developed the ability to control how and when their muscles use oxygen.
text: Emperor penguins can remain underwater for nearly 22 minutes.
text: The emperor penguin can dive up to 870 feet (265.2 m) and stay underwater for 18 minutes.