People is related to Multiple. Multiple is related to Reply. Reply is a synonym of Counter. Counter is related to Birthday. 
Controversy is a type of Dispute. Controversy is related to Oil. Oil is related to Vegetable. Vegetable is related to Fresh. 
People <--RelatedTo--> Multiple <--RelatedTo--> Reply <--Synonym--> Counter <--RelatedTo--> Birthday 
Dispute <--IsA-- Controversy <--RelatedTo--> Oil <--RelatedTo--> Vegetable <--RelatedTo--> Fresh 