Assertion: calendar's month | /r/HasProperty | 29 or 30 days long
Facets:
value: alternately
type: DEGREE
value: because of this
type: CAUSE
Source sentences:
text: Because of this, the months in the Jewish calendar are 29 or 30 days long.
text: The twelve months are alternately 29 and 30 days long (the lunar cycle is approximately 29.5 days), giving a year of 354 days.