Water is related to Fresh. Fresh is related to Fish. Shrimp is a type of Fish. 
Character is related to Narrative. Narrative is related to Writing. Desk can be used for Writing. Desk is related to Return. 
Water <--RelatedTo--> Fresh <--RelatedTo--> Fish <--IsA-- Shrimp 
Character <--RelatedTo--> Narrative <--RelatedTo--> Writing <--UsedFor-- Desk <--RelatedTo--> Return 