Confess is a type of Admit. Admit is related to Responsibility. Fault is a type of Responsibility. Fault is a synonym of Error. 
Beam is a type of Side. Side is related to Cause. Accuse is etymologically related to Cause. 
Confess --IsA--> Admit <--RelatedTo--> Responsibility <--IsA-- Fault <--Synonym--> Error 
Beam --IsA--> Side <--RelatedTo--> Cause <--EtymologicallyRelatedTo-- Accuse 