using System;
using System.Linq;
using System.Collections.Generic;
 
public class Test
{
        public static void Main()
        {
                var list = new List<Fact> () {
                            new Fact { Thing = "Roses are", Color = 0xFF0000 },
                                    new Fact { Thing = "Roses are", Color = 0xFF0000 },
                                    new Fact { Thing = "Violets are", Color = 0x0000FF },
                                    new Fact { Thing = "Sugar is", Color = 1337 },
                                    new Fact { Thing = "Sugar is", Color = 1337 },
                            };                            
                foreach(var item in GetFacts(list)) {
                    Console.WriteLine ("{0} {1}", item.Thing, item.Color);
                }
        }
 
        public static IEnumerable<Fact> GetFacts(IEnumerable<Fact> list) {
            return list.Select(x => new { x.Thing, x.Color } ).Distinct();
        }
}
 
public class Fact
{
    public string Thing { get; set; }
    public int Color { get; set; }
}
 

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