Program is a type of Schedule. Program is a synonym of Broadcast. Broadcast is a type of Cast. Cast is a synonym of Roll. 
Vacation is related to Travel. Travel is a synonym of Tour. Tourist is derived from Tour. 
Schedule <--IsA-- Program <--Synonym--> Broadcast --IsA--> Cast <--Synonym--> Roll 
Vacation <--RelatedTo--> Travel <--Synonym--> Tour <--DerivedFrom-- Tourist 