Lawsuit can cause/lead to Stress. Lawsuit is a synonym of Cause. Facilitate is a type of Cause. 
Weak is similar to Regular. Regular is related to Basic. Basic is related to Circle. 
Stress <--Causes-- Lawsuit <--Synonym--> Cause <--IsA-- Facilitate 
Weak <--SimilarTo--> Regular <--RelatedTo--> Basic <--RelatedTo--> Circle 