Departure is related to Exist. Exist is related to Person. Person wants (to) Electricity. Electricity is related to Charge. 
Background is a type of Stress. Stress can cause/lead to Fatigue. Fatigue is related to Chronic. Chronic is a synonym of Continuing. 
Departure <--RelatedTo--> Exist <--RelatedTo--> Person --Desires--> Electricity <--RelatedTo--> Charge 
Background --IsA--> Stress --Causes--> Fatigue <--RelatedTo--> Chronic <--Synonym--> Continuing 