How to implement English syntax parser.

How to build syntax graphs.

With NLP for .NET you can to implement natural language syntax parser with 6 lines of code:

NLParser parser = new NLParser();
foreach(Utterance utterance in parser.Text<Utterance>(@"c:\test.txt", Encoding.UTF8))
{
     if ((null != utterance.Syntaxes) && (0 != utterance.Syntaxes.Length))
           Console.WriteLine(utterance.Syntaxes[0].ToString());
}

Reed-Kellogg syntax tool demonstrates its online.

How to break text into sentences.

The same code allows breaking text into sentences if you don't need syntax.

NLParser parser = new NLParser();
foreach(Utterance utterance in parser.Text<Utterance>(@"c:\test.txt", Encoding.UTF8))
{
     Console.WriteLine(utterance.Text);
}