Metal is related to Material. Material is related to Cotton. 
Black is related to Absence. Absence is the opposite of Presence. Presence is a type of Impression. Edition is a type of Impression. 
Metal <--RelatedTo--> Material <--RelatedTo--> Cotton 
Black <--RelatedTo--> Absence <--Antonym--> Presence --IsA--> Impression <--IsA-- Edition 