Dispute is a synonym of Difference. Difference requires Separation. 
Plant is related to Thin. Thin is a synonym of Fine. Fine is similar to Small. Small is related to Arrow. 
Dispute <--Synonym--> Difference --HasPrerequisite--> Separation 
Plant <--RelatedTo--> Thin <--Synonym--> Fine <--SimilarTo--> Small <--RelatedTo--> Arrow 