Afternoon is a type of Day. Afternoon is the opposite of Morning. Morning is related to Break. Break is a type of Switch. 
Pleasure is a synonym of Happiness. Happiness is related to Delight. Butterfly can Delight. 
Day <--IsA-- Afternoon <--Antonym--> Morning <--RelatedTo--> Break --IsA--> Switch 
Pleasure <--Synonym--> Happiness <--RelatedTo--> Delight <--CapableOf-- Butterfly 