Feature is related to Ridge. Ridge is related to Trail. Trail is a synonym of Lead. Lead is related to Fishing. 
Director is similar to Boss. Boss is related to Doctor. Doctor is related to Examination. 
Feature <--RelatedTo--> Ridge <--RelatedTo--> Trail <--Synonym--> Lead <--RelatedTo--> Fishing 
Director <--SimilarTo--> Boss <--RelatedTo--> Doctor <--RelatedTo--> Examination 