Sales is related to Customer. you are likely to find Customer in/at/on Bar. Bar is related to Hang. 
Strict is etymologically related to Strain. Strain is related to Stress. 
Sales <--RelatedTo--> Customer --AtLocation--> Bar <--RelatedTo--> Hang 
Strict --EtymologicallyRelatedTo--> Strain <--RelatedTo--> Stress 