Equal is related to Equivalent. Equivalent is a synonym of Counterpart. 
Social is related to Psychology. Psychology is related to Subject. Subject is a type of Thing. Thing is a type of Feeling. 
Equal <--RelatedTo--> Equivalent <--Synonym--> Counterpart 
Social <--RelatedTo--> Psychology <--RelatedTo--> Subject --IsA--> Thing --IsA--> Feeling 