Dirt would make you want to Clean. Clean is related to Shower. Shower is part of House. House is related to Doorway. 
Rid is a form of Ride. Clear is a type of Rid. Clear is a type of Remove. 
Dirt --CausesDesire--> Clean <--RelatedTo--> Shower --PartOf--> House <--RelatedTo--> Doorway 
Ride <--FormOf-- Rid <--IsA-- Clear --IsA--> Remove 