These tokens concatenate all holidays for the current date (or a range of dates when used in a duration token).
If there are many Holidays Sets for the current Holidays List, and there are more than one holiday on a given date, then they are displayed in the order in which the Holidays Sets appear in the corresponding Holidays List. How multiple holidays are separated (comma, carriage return, …) is controled by the ScriptLine property Holidays (multiple).
See also : Specific Holidays Sets Modifier.