Electricity is related to Power. Power is related to Nose. Nose is related to Lip. Lip is related to Outer. 
Series is a type of Contest. Contest is a synonym of Battle. 
Electricity <--RelatedTo--> Power <--RelatedTo--> Nose <--RelatedTo--> Lip <--RelatedTo--> Outer 
Series --IsA--> Contest <--Synonym--> Battle 