Doctor is related to Body. Representation is a type of Body. Representation is a type of Cooperation. 
Anxious is the opposite of Calm. Calm is related to Lake. you are likely to find Snake in/at/on Lake. 
Doctor <--RelatedTo--> Body <--IsA-- Representation --IsA--> Cooperation 
Anxious <--Antonym--> Calm <--RelatedTo--> Lake <--AtLocation-- Snake 