Antelope : NLP framework for .NET Framework
From the website:
"Antelope stands for Advanced Natural Language Object-oriented Processing Environment. This framework facilitates the development of Natural Language Processing software. Antelope, currently in (beta) version 0.7.1, is designed for the Microsoft .NET framework 2.0. Therefore, you can use it with C#, Visual Basic.NET, Delphi.NET and many other .NET compliant languages (even COBOL.NET!)."
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