public override string ToString()
{
string returnValue = "";
returnValue += !string.IsNullOrEmpty(SearchEngine) ? "SearchEngine=" + SearchEngine + ", " : "SearchEngine=null or empty, ";
returnValue += !string.IsNullOrEmpty(Source) ? "Source=" + Source + ", " : "Source=null or empty, ";
returnValue += !string.IsNullOrEmpty(Snippet) ? "Snippet=" + Snippet + ", " : "Snippet=null or empty, ";
returnValue += IsTrained != null ? "IsTrained=" + IsTrained.ToString() + "." : "IsTrained=False.";
return returnValue;
}