Plan is related to Think. Think requires Awake. Awake is related to Conscious. Conscious is a synonym of Aware. 
Taxpayer is derived from Tax. Tax is related to Demand. Demand is a synonym of Need. 
Plan <--RelatedTo--> Think --HasPrerequisite--> Awake <--RelatedTo--> Conscious <--Synonym--> Aware 
Taxpayer --DerivedFrom--> Tax <--RelatedTo--> Demand <--Synonym--> Need 