Short is related to Lack. Lack is related to Empty. Empty is related to Pour. 
Denial is a type of Statement. Statement is related to Believe. Believe is a different concept from Doubt. Doubt is related to Answer. 
Short <--RelatedTo--> Lack <--RelatedTo--> Empty <--RelatedTo--> Pour 
Denial --IsA--> Statement <--RelatedTo--> Believe <--DistinctFrom--> Doubt <--RelatedTo--> Answer 