Gathering is related to Harvest. Harvest is a synonym of Effect. Serve is a type of Effect. Serve is related to Reserve. 
Style is related to Dance. Dance entails/necessarily involves Step. 
Gathering <--RelatedTo--> Harvest <--Synonym--> Effect <--IsA-- Serve <--RelatedTo--> Reserve 
Style <--RelatedTo--> Dance --Entails--> Step 