Break is related to Division. Division is the opposite of Unity. Unity is a synonym of Integrity. 
Post is related to Express. Express is related to Driving. Driving can cause/lead to Fatigue. Fatigue is similar to Strain. 
Break <--RelatedTo--> Division <--Antonym--> Unity <--Synonym--> Integrity 
Post <--RelatedTo--> Express <--RelatedTo--> Driving --Causes--> Fatigue <--SimilarTo--> Strain 