Edge is related to Knife. Knife is related to Cut. Cut is a synonym of Reduce. 
Cloud is a type of Suspicion. Cloud is related to Very. Very is related to Bright. Bright is related to Morning. 
Edge <--RelatedTo--> Knife <--RelatedTo--> Cut <--Synonym--> Reduce 
Suspicion <--IsA-- Cloud <--RelatedTo--> Very <--RelatedTo--> Bright <--RelatedTo--> Morning 