Holiday is related to Vacation. Vacation is a type of Spend. Spend is a synonym of Drop. Drop is a different concept from Pickup. 
Appointment is related to Visit. See is a type of Visit. Expect is a type of See. 
Holiday <--RelatedTo--> Vacation --IsA--> Spend <--Synonym--> Drop <--DistinctFrom--> Pickup 
Appointment <--RelatedTo--> Visit <--IsA-- See <--IsA-- Expect 