Oil is related to Very. Very is related to Continent. Continent is related to Unique. 
Settle is a synonym of Adjust. Adjust is a synonym of Edit. Edit is related to Crop. Crop is related to Grass. 
Oil <--RelatedTo--> Very <--RelatedTo--> Continent <--RelatedTo--> Unique 
Settle <--Synonym--> Adjust <--Synonym--> Edit <--RelatedTo--> Crop <--RelatedTo--> Grass 