Elbow is a type of Bend. Bend is related to Bow. Buck is etymologically related to Bow. 
Recommend is a synonym of Move. Steal is a type of Move. Steal is the opposite of Donate. 
Elbow --IsA--> Bend <--RelatedTo--> Bow <--EtymologicallyRelatedTo-- Buck 
Recommend <--Synonym--> Move <--IsA-- Steal <--Antonym--> Donate 