(subclass EasterSunday ChristianHoliday) | Media.kif 484-484 | Easter sunday is a subclass of Christian holiday |
(subclass EasterSunday Sunday) | Media.kif 485-485 | Easter sunday is a subclass of Sunday |
(subclass EasterSunday MoveableHoliday) | Media.kif 486-486 | Easter sunday is a subclass of moveable holiday |