Assertion: walrus | /r/HasProperty | underwater
Facets:
value: for 30 minutes
type: TEMPORAL
value: at a time
type: TEMPORAL
Source sentences:
text: Walrus can dive up to 90 m and stay underwater for long periods of time – up to 30 minutes!
text: They typically can dive to a depth of about 80-90 metres, and stay underwater for 30 minutes at a time.
text: They can stay underwater for up to 10 minutes.