Assertion: convention's rule | /r/HasProperty | based on subtraction of n years
Facets:
value: from date2
type: TEMPORAL
Source sentences:
text: The simple rule illustrated here is based on subtraction of n years from Date2, where subtracting whole years from a date goes back to the same day-of-month, except if starting on 29 February and going back to a non-leap year then 28 February results.