Relax is a type of Change. Relax is a synonym of Weaken. Weaken is a synonym of Exhaust. 
Spell is a synonym of Charm. Charm is related to Type. Type is related to Democracy. Democracy is related to Vote. 
Change <--IsA-- Relax <--Synonym--> Weaken <--Synonym--> Exhaust 
Spell <--Synonym--> Charm <--RelatedTo--> Type <--RelatedTo--> Democracy <--RelatedTo--> Vote 