Dictionary (Exercise)

using System;
using System.Collections.Generic;

namespace ConsoleTests
{
    class ConsoleTests
    {
        static void Main()
        {
            Dictionary<string, string> dictionary =
                new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
            dictionary.Add(".NET", "platform for applications from Microsoft");
            dictionary.Add("CLR", "managed execution environment for .NET");
            dictionary.Add("namespace", "hierarchical organization of classes");
            for (int i = 0; i < 10; i++)
            {
                string input = Console.ReadLine();
                if (dictionary.ContainsKey(input))
                {
                    string value = dictionary[input];
                    Console.WriteLine("\"{0}\"",value);
                }
                else
                {
                    Console.WriteLine("Error: word not found in the dictionary.");
                }
            }
        }
    }
}