Alarm is a type of Device. Runner is a type of Device. Blade is a type of Runner. Blade is related to Metal. 
Person does not want (to) Dirty. Dirty is related to Waste. Waste is related to Left. 
Alarm --IsA--> Device <--IsA-- Runner <--IsA-- Blade <--RelatedTo--> Metal 
Person --NotDesires--> Dirty <--RelatedTo--> Waste <--RelatedTo--> Left 