Fight is related to Argue. Argue is related to Dispute. Dispute is a synonym of Contend. Contend is a synonym of Struggle. 
Feeling is related to Certain. Certain is related to Known. Known is related to Idea. Idea is related to Brilliant. 
Fight <--RelatedTo--> Argue <--RelatedTo--> Dispute <--Synonym--> Contend <--Synonym--> Struggle 
Feeling <--RelatedTo--> Certain <--RelatedTo--> Known <--RelatedTo--> Idea <--RelatedTo--> Brilliant 