Parse whois answer

I want to create whois class like that

public class DomainInfo
{

     public string NameServer {get;set;}        
     public string CreationDate {get;set;}
     public string UpdatedDate {get;set;} 
     public string ExpirationDate {get;set;}
     public string Status {get;set;}        
     public string RegistrantName {get;set;}
     public string RegistrantOrganization {get;set;}
     public string Registrantemail {get;set;}        
     public static DomainInfo Parse(string inputData)
  {
     ......
  }
}

But I have some problems because different DNS servers return different answers and it's a very difficult task to parse returned answers. How can this be done?