(subclass AscensionThursday ChristianHoliday) | Media.kif 528-528 | AscensionThursday 是 ChristianHoliday 的 subclass |
(subclass AscensionThursday MoveableHoliday) | Media.kif 529-529 | AscensionThursday 是 可动的假期 的 subclass |
(subclass AscensionThursday Thursday) | Media.kif 530-530 | AscensionThursday 是 星期四 的 subclass |