Ill is related to Sick. Sick is related to Disease. Diabetes is a type of Disease. 
Finger is a type of Search. Search is a synonym of Research. Research is related to Develop. 
Ill <--RelatedTo--> Sick <--RelatedTo--> Disease <--IsA-- Diabetes 
Finger --IsA--> Search <--Synonym--> Research <--RelatedTo--> Develop 