Math is related to Course. Course is related to Play. Play is related to Sport. Sport is related to Exercise. 
People can be Fair. Fair is the opposite of Unfair. Unfair is related to Cheat. 
Math <--RelatedTo--> Course <--RelatedTo--> Play <--RelatedTo--> Sport <--RelatedTo--> Exercise 
People --HasProperty--> Fair <--Antonym--> Unfair <--RelatedTo--> Cheat 