Republic is related to Form. Form is a synonym of Class. Order is part of Class. 
Bar is related to Vendor. you are likely to find Vendor in/at/on Conference. Conference is a type of Discussion. 
Republic <--RelatedTo--> Form <--Synonym--> Class <--PartOf-- Order 
Bar <--RelatedTo--> Vendor --AtLocation--> Conference --IsA--> Discussion 