Diagnosis is related to Dead. Dead is related to Body. Body is related to Dress. 
you are likely to find Sink in/at/on Kitchen. you are likely to find Sink in/at/on House. you are likely to find Material in/at/on House. Material is related to Stone. 
Diagnosis <--RelatedTo--> Dead <--RelatedTo--> Body <--RelatedTo--> Dress 
Kitchen <--AtLocation-- Sink --AtLocation--> House <--AtLocation-- Material <--RelatedTo--> Stone 