Captain is related to Job. Job is related to Artist. Photographer is a type of Artist. Photographer is derived from Photography. 
Symptom is a synonym of Indication. Indication is a type of Communication. Communication is related to Voice. 
Captain <--RelatedTo--> Job <--RelatedTo--> Artist <--IsA-- Photographer --DerivedFrom--> Photography 
Symptom <--Synonym--> Indication --IsA--> Communication <--RelatedTo--> Voice 