Cotton is related to Vegetable. Pepper is a type of Vegetable. 
Good is related to Happy. Happy is related to Enjoy. Enjoy is a synonym of Love. Love can cause/lead to Pain. 
Cotton <--RelatedTo--> Vegetable <--IsA-- Pepper 
Good <--RelatedTo--> Happy <--RelatedTo--> Enjoy <--Synonym--> Love --Causes--> Pain 