Attribute is related to Gift. Gift is a synonym of Contribute. Contributor is derived from Contribute. 
Action is related to Wave. Wave is related to Flow. Flow is related to Constant. Constant is the opposite of Variable. 
Attribute <--RelatedTo--> Gift <--Synonym--> Contribute <--DerivedFrom-- Contributor 
Action <--RelatedTo--> Wave <--RelatedTo--> Flow <--RelatedTo--> Constant <--Antonym--> Variable 