Forum is a type of Meeting. Meeting is related to Business. Manufacturer is a type of Business. 
Emphasis is a synonym of Stress. Stress is the opposite of Relax. Ocean can be used for Relax. 
Forum --IsA--> Meeting <--RelatedTo--> Business <--IsA-- Manufacturer 
Emphasis <--Synonym--> Stress <--Antonym--> Relax <--UsedFor-- Ocean 