Cable is a synonym of Line. Line is related to Walk. 
Fold is the opposite of Unfold. Butterfly is a type of Unfold. Butterfly is related to Delicate. Delicate is similar to Tender. 
Cable <--Synonym--> Line <--RelatedTo--> Walk 
Fold <--Antonym--> Unfold <--IsA-- Butterfly <--RelatedTo--> Delicate <--SimilarTo--> Tender 