NLOMJ--Natural Language Object Model in Java

We have developed a web-based human-computer-intera ction system with natural language for foreign language learning: CSI EC (Computer Simulator in Educational Communication) [1]. The kernel of this system is the natural language understanding mechanism (NLML, NLOMJ and NLDB) and the communicational response (CR). NLML(Natural Language Markup Languag e) is a markup language to describe the grammar of an expression in a natur al language. It is produced to an expression of this natural language by a parser wri tten according to the grammar rules and lexicon of this language [2]. We use English as the experiment language in our system. For example, the NLML for the sentence " I come " is