Imply is a synonym of Involve. Involve is a type of Admit. Admit is related to Enter. Enter is related to Shift. 
Urge is related to Want. Want is a different concept from Quantity. Quantity is related to Bulk. Bulk is a synonym of Majority. 
Imply <--Synonym--> Involve --IsA--> Admit <--RelatedTo--> Enter <--RelatedTo--> Shift 
Urge <--RelatedTo--> Want <--DistinctFrom--> Quantity <--RelatedTo--> Bulk <--Synonym--> Majority 