client code : check all the Sharepoint 2010 group Owner

static void Main(string[] args)
       {

           String sURL = "http://xxxxx/sites/yyyyy";
          
          
           ClientContext clientContext = new ClientContext( sURL);
           GroupCollection collGroup = clientContext.Web.SiteGroups;
                     

           clientContext.Load(collGroup);

           clientContext.Load(collGroup);
               //groups => groups.Include(
                //   group => group.Owner));

           clientContext.ExecuteQuery();

           foreach (Group oGroup in collGroup)
           {
               Console.WriteLine(oGroup.Title +"== "+ oGroup.OwnerTitle);
          
           }

          
           Console.ReadLine();

       }