using System;
using System.Text.RegularExpressions;
using System.Collections.Specialized;
 
public class Test
{
    public static void Main()
    {
    	OrderedDictionary Links = new OrderedDictionary();
        Links.Add("Learn more about adding manuals and labels", "2");
        Links.Add("Delete Manuals and Labels", "3");
        Links.Add("manuals and labels", "1");
 
        string text = "Having trouble with your manuals and labels? Learn more about adding manuals and labels. Need to get rid of them? Try to delete manuals and labels.";
 
		foreach (string termToFind in Links.Keys)
		{
		    Regex _regex = new Regex(@"\b" + termToFind + @"s?\b(?![^<>]*</)", RegexOptions.IgnoreCase);
		    text = _regex.Replace(text, @"<a href=""" + Links[termToFind] + @".html"">$&</a>");
		}
		Console.WriteLine(text);
    }
}

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