In the same principle way the monitoring algorithm is able to generate the following pairs of ambiguous and unambiguous sentences. These examples have been produced by a Prolog version of the monitored generation strategy used in the PlayMoBiLD system - developed as part of the project BiLD (short for Bidirectional Linguistic Deduction) [Neumann1991a]. The embedded generator and parser are described in [VanNoord1993]. The systems runs with a lexicalized grammar for Dutch (written by Gertjan van Noord, which is in its style similar to the one given in appendix A, but covers more constructions) and with a lexicalized grammar for German written by Wojciech Skut.
For both grammars, it is the case that the primarily motivation of their design and form of representation is a linguistic one, i.e., they have not been realized ``with monitoring in mind''. This is important, because otherwise one could criticize that the grammar ``meets'' the particular problem specification, and therefore might only be use-able for that specific purpose.
We will give first some examples produced by the monitored generator using the Dutch grammar:
Next some German examples:
Although, these successfully processed examples must be considered relative to the coverage of the grammars in use, they give a sense of the potential power the monitored generation strategy bears.