The individual could come to this conclusion using the prototype theory if the dog were average looking, but what happens if the dog only has three legs and does not bark? Here prototype theory might not allow the individual to conclude that the animal is a dog because it doesn't have prototypic traits but exemplar theory would take into account previous examples of dogs that do not bark or dogs that have injuries and are therefore missing limbs. Exemplar-based categorization approaches carefully go through all encountered examples in a given category to allow for accurate categorization.