Percival Lucena,  Dilvan de Abreu Moreira,  Carlos Alberto Estombelo Montesco. 

This paper presents a new software agent platform that is able to manipulate knowledge and execute actions based on requests made on restricted natural language. A new model for representing knowledge and actions, based on extended ontologies, is presented and a prototype that implements the ideas is discussed as well.

http://www.lbd.dcc.ufmg.br/colecoes/til/2003/0024.pdf

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