Table of contents : A formalism for the description of question answering systems....Pages 1-48 Access to data base systems via natural language....Pages 49-86 An overview of plidis a problem solving information system with German as query language....Pages 87-132 Metamorphosis grammars....Pages 133-188 The theory and practice of augmented transition network grammars....Pages 191-254 Syntactic analysis of written Polish....Pages 261-292