Eat is related to Drinking. Drinking requires Tolerance. 
Lawsuit can cause/lead to Stress. Background is a type of Stress. Background is a synonym of Setting. Setting is related to Course. 
Eat <--RelatedTo--> Drinking --HasPrerequisite--> Tolerance 
Lawsuit --Causes--> Stress <--IsA-- Background <--Synonym--> Setting <--RelatedTo--> Course 