Bill is related to Plan. Plan is related to Lesson. Lesson is related to History. History is a synonym of Log. 
Fork is related to Farmer. Farmer is the opposite of Business. 
Bill <--RelatedTo--> Plan <--RelatedTo--> Lesson <--RelatedTo--> History <--Synonym--> Log 
Fork <--RelatedTo--> Farmer <--Antonym--> Business 