Face is a synonym of Side. Side is the opposite of Center. Center is related to Sun. Sun is related to Afternoon. 
Flood is a type of Supply. Flood is a synonym of Drown. 
Face <--Synonym--> Side <--Antonym--> Center <--RelatedTo--> Sun <--RelatedTo--> Afternoon 
Supply <--IsA-- Flood <--Synonym--> Drown 