Color is related to Smoke. Smoke is the opposite of Fire. Fire is related to Candle. Candle is related to Scent. 
Introduction is a type of Textbook. Textbook can be used for Learning. Learning requires Intelligence. 
Color <--RelatedTo--> Smoke <--Antonym--> Fire <--RelatedTo--> Candle <--RelatedTo--> Scent 
Introduction --IsA--> Textbook --UsedFor--> Learning --HasPrerequisite--> Intelligence 