Assertion: leap year's day | /r/CapableOf | help to synchronize the calendar
Facets:
value: to earth’s orbit
type: TRANSITIVE-OBJECT
Source sentences:
text: Known as a “leap day,” the 29th day of February helps to synchronize the calendar to Earth’s orbit.
text: Known as a “leap day,” the 29th day of February helps to synchronize the calendar to Earth’s orbit.