Unit is related to Cost. Cost is related to Tax. Tax is a synonym of Assess. 
Bare is a form of Bear. Bear is related to Weight. Weight is related to Related. Related is related to Song. 
Unit <--RelatedTo--> Cost <--RelatedTo--> Tax <--Synonym--> Assess 
Bare --FormOf--> Bear <--RelatedTo--> Weight <--RelatedTo--> Related <--RelatedTo--> Song 