Vocal is related to Throat. Throat is related to Tube. Tube is related to Plastic. Plastic is the opposite of Genuine. 
Capital is related to Money. Money is related to Register. File is a type of Register. File is related to Surface. 
Vocal <--RelatedTo--> Throat <--RelatedTo--> Tube <--RelatedTo--> Plastic <--Antonym--> Genuine 
Capital <--RelatedTo--> Money <--RelatedTo--> Register <--IsA-- File <--RelatedTo--> Surface 