Irony is derived from Iron. Iron is related to Small. Small is a different concept from Large. Large is related to Event. 
Rice is related to Content. Content is a type of Collection. Bunch is a type of Collection. Bunch is a synonym of Crew. 
Irony --DerivedFrom--> Iron <--RelatedTo--> Small <--DistinctFrom--> Large <--RelatedTo--> Event 
Rice <--RelatedTo--> Content --IsA--> Collection <--IsA-- Bunch <--Synonym--> Crew 