 David Makinson (Makinson 1994) has pointed out that semantic network theory is very sensitive to the form in which defeasible information is represented. There is a great difference between having a direct link between two nodes and having a path between the two nodes being supported by the graph as a whole. The notion of preemption gives special powers to explicitly given premises over conclusions. Direct links always take priority over longer paths. Consequently, inheritance networks lack two desirable metalogical properties: cut and cautious monotony (which will be covered in more detail in the section on Logical Approaches).