Formation is a type of Arrangement. Arrangement is related to Colony. Colony is related to War. War can be Ugly. 
Current is a synonym of Stream. Stream is related to Flow. Flow is a type of Flood. 
Formation --IsA--> Arrangement <--RelatedTo--> Colony <--RelatedTo--> War --HasProperty--> Ugly 
Current <--Synonym--> Stream <--RelatedTo--> Flow --IsA--> Flood 