sentences:  Sample Prototypes
  Typically, the implementation of such matching techniques can be classified as being either rule based or learner based systems.The complementary nature of these different approaches has instigated a number of applications using a combination of techniques depending on the nature of the domain or application under consideration.The relationship types between objects that are identified at the end of a matching process are typically those with set semantics such as overlap, disjointness, exclusion, equivalence, or subsumption.