Rest is related to Peace. you would Relax because Peace. Relax is a type of Affect. Affect is a synonym of Impact. 
Nurse is related to Hospital. Hospital is related to Establishment. 
Rest <--RelatedTo--> Peace <--MotivatedByGoal-- Relax --IsA--> Affect <--Synonym--> Impact 
Nurse <--RelatedTo--> Hospital <--RelatedTo--> Establishment 