Instance is a synonym of Case. Case is related to Leather. Kid is a type of Leather. Kid is related to Trouble. 
School is related to Mark. Mark is related to Cut. Cut is related to Rip. 
Instance <--Synonym--> Case <--RelatedTo--> Leather <--IsA-- Kid <--RelatedTo--> Trouble 
School <--RelatedTo--> Mark <--RelatedTo--> Cut <--RelatedTo--> Rip 