Equality is related to Equal. Equal is a synonym of Uniform. Uniform is related to Captain. 
Genuine is the opposite of Plastic. Button is made of Plastic. Button is related to Coin. 
Equality <--RelatedTo--> Equal <--Synonym--> Uniform <--RelatedTo--> Captain 
Genuine <--Antonym--> Plastic <--MadeOf-- Button <--RelatedTo--> Coin 