Graduation is a synonym of Scale. you are likely to find Scale in/at/on Doctor. Doctor is related to Unit. Unit is related to Storage. 
Elbow is related to Middle. Middle is a type of Put. Put is related to Action. 
Graduation <--Synonym--> Scale --AtLocation--> Doctor <--RelatedTo--> Unit <--RelatedTo--> Storage 
Elbow <--RelatedTo--> Middle --IsA--> Put <--RelatedTo--> Action 