using System; using System.Linq; using System.Collections; using System.Collections.Generic; public class MainClass { public static void Main() { string[] presidents = {"AAAA", "aaaa", "bacDert", "B1234", "Carter"}; IEnumerable<string> items = presidents.Where(s => Char.IsLower(s[4])); Console.WriteLine("After the query."); foreach (string item in items) Console.WriteLine(item); } }