Drink is the opposite of Meat. Mate is etymologically related to Meat. Mate is a synonym of Teammate. Teammate is a type of Associate. 
Therapist is a type of Expert. Expert is related to Genius. Genius can be Flexible. Flexible is related to Neck. 
Drink <--Antonym--> Meat <--EtymologicallyRelatedTo-- Mate <--Synonym--> Teammate --IsA--> Associate 
Therapist --IsA--> Expert <--RelatedTo--> Genius --HasProperty--> Flexible <--RelatedTo--> Neck 