Spray is a type of Jet. Spray is related to Do. Clean requires Do. 
Master is related to Servant. Servant is related to Food. Food is etymologically related to Foster. Foster is a synonym of Protect. 
Jet <--IsA-- Spray <--RelatedTo--> Do <--HasPrerequisite-- Clean 
Master <--RelatedTo--> Servant <--RelatedTo--> Food --EtymologicallyRelatedTo--> Foster <--Synonym--> Protect 