Tool is related to Needle. you are likely to find Needle in/at/on Doctor. Doctor is a different concept from Nurse. 
Award is related to Medal. Medal is related to Silver. Silver is related to High. 
Tool <--RelatedTo--> Needle --AtLocation--> Doctor <--DistinctFrom--> Nurse 
Award <--RelatedTo--> Medal <--RelatedTo--> Silver <--RelatedTo--> High 