Location is related to Middle. Middle is related to Elbow. Elbow is related to Body. Body is related to Shell. 
Enterprise is related to Company. Company is related to Profit. Profit is related to Extra. 
Location <--RelatedTo--> Middle <--RelatedTo--> Elbow <--RelatedTo--> Body <--RelatedTo--> Shell 
Enterprise <--RelatedTo--> Company <--RelatedTo--> Profit <--RelatedTo--> Extra 