using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        string[] lines = {"Blue,era,Colors/col_image,37,1",

                          "Pink,aka,Colors/col_image,37,2",

                          "BlueJay,oko,Birds/col_image,38,3" };

​

        var stuff = (from line in lines

                     let data = line.Split(',').ToList()

                     group data by data[3] into c

                     select new StuffType {

                         Category = DefineRange(Convert.ToInt32(c.Key)),

                         dailyStuffs = (from s in c

                                        select new DailyStuffs {

                                            StuffName = s[0],

                                            ConvertedName = s[1],

                                            StuffImage = s[2],

                                            CategoryId = Convert.ToInt32(s[3])

                                        }).ToList()

                     }).ToList();

​

        foreach(var c in stuff){

            Console.WriteLine(c.Category);

            foreach(var s in c.dailyStuffs){

                Console.WriteLine("\t" + s.StuffName + "\t" + s.ConvertedName + "\t" + s.StuffImage);

            }

        }

    }

​

    private static string DefineRange(int value){

        if (value >= 1 && value <= 37)

            return "Colors";

        else

            return "Birds";

    }

    public class DailyStuffs

    {

        public string StuffName { get; set; }

        public string ConvertedName { get; set; }

        public string StuffImage { get; set; }

        public int CategoryId { get; set; }

    }

     public class StuffType

    {

       public string Category { get; set; }       

       public List<DailyStuffs> dailyStuffs;

    }

}