Psychologist is a type of Doctor. Doctor is related to Go. Go is a synonym of Try. Trial is etymologically related to Try. 
Rumor is a type of Information. Information is related to File. File is related to Case. Case is related to Session. 
Psychologist --IsA--> Doctor <--RelatedTo--> Go <--Synonym--> Try <--EtymologicallyRelatedTo-- Trial 
Rumor --IsA--> Information <--RelatedTo--> File <--RelatedTo--> Case <--RelatedTo--> Session 