Brown is related to Straw. Straw is related to Dry. Desert can be Dry. Desert is related to Chocolate. 
Essay is a synonym of Try. Try is a synonym of Stress. Stress can cause/lead to Depression. Dip is a type of Depression. 
Brown <--RelatedTo--> Straw <--RelatedTo--> Dry <--HasProperty-- Desert <--RelatedTo--> Chocolate 
Essay <--Synonym--> Try <--Synonym--> Stress --Causes--> Depression <--IsA-- Dip 