public class __invalid_type__171166
{
    public int pageid { get; set; }
    public int ns { get; set; }
    public string title { get; set; }
    public string extract { get; set; }
}

public class Pages
{
    public __invalid_type__171166 __invalid_name__171166 { get; set; }
}

public class Query
{
    public Pages pages { get; set; }
}

public class RootObject
{
    public string batchcomplete { get; set; }
    public Query query { get; set; }
}