Broadcast is a type of Cast. Cast is a synonym of Throw. Ridge is a type of Throw. 
Calm is related to Relax. Seat can be used for Relax. Seat is related to Like. 
Broadcast --IsA--> Cast <--Synonym--> Throw <--IsA-- Ridge 
Calm <--RelatedTo--> Relax <--UsedFor-- Seat <--RelatedTo--> Like 