Direction is a synonym of Guidance. Guidance is a type of Management. Management is a synonym of Conduct. 
Hearing requires Medium. Hearing is a type of Opportunity. Opportunity is related to Opera. you are likely to find Curtain in/at/on Opera. 
Direction <--Synonym--> Guidance --IsA--> Management <--Synonym--> Conduct 
Medium <--HasPrerequisite-- Hearing --IsA--> Opportunity <--RelatedTo--> Opera <--AtLocation-- Curtain 