Tea is a type of Meal. Tea is a type of Herb. Banana is a type of Herb. 
Tournament is a type of Contest. Contest is a synonym of Debate. Debate is related to Discourse. 
Meal <--IsA-- Tea --IsA--> Herb <--IsA-- Banana 
Tournament --IsA--> Contest <--Synonym--> Debate <--RelatedTo--> Discourse 