import java.util.*;
import java.io.*;

public class Dictionary
{
   public static void main(String[] args) throws IOException
   {
      PrintStream output = System.out;
      Scanner input = new Scanner(System.in);
      
      // Type of collection
      Collection<String> dictionary =  new ArrayList<String>();
      
      final String DICT_NAME = "dictionary.txt";
      Scanner dictionaryInput = new Scanner(new File(DICT_NAME));
      
      while (dictionaryInput.hasNextLine())
      {
         String word = dictionaryInput.nextLine().trim();
         dictionary.add(word);
      }
      output.println(dictionary.size());
      
      output.print("Enter a word to look up: ");
      while (input.hasNextLine())
      {
         String word = input.nextLine().trim().toLowerCase();
         if (dictionary.contains(word))
         {
            output.printf("%s is in the dictionary%n%n", word);
         }
         else
         {
            output.printf("%s is not in the dictionary%n%n", word);
         }
         output.print("Enter a word to look up: ");
      }
      
   }
}