import java.io.File;
 import java.io.IOException;
 import java.util.Map;
 import java.util.Scanner;
 import java.util.TreeMap;

 public class WordCounter {
   public static void main( String[] args ) {
     try {
       File f = new File( args[0] );
       Scanner sc;
       sc = new Scanner( f );
       // sc.useDelimiter( "[^a-zA-Z']+" );
       Map<String, Integer> wordCount = new TreeMap<String, Integer>( );
       while ( sc.hasNext( ) ) {
         String word = sc.next( );
         if( !wordCount.containsKey( word ) )
           wordCount.put( word, 1 );
         else
           wordCount.put( word, .get( word ) + 1 );
       }
            
       // Show results.
       for ( String word : wordCount.keySet( ) )
         System.out.println( word + " " + wordCount.get( word ) );
       System.out.println( wordCount.size( ) );
     }
     catch( IOException e ) {
       System.out.println( "Unable to read from file." );
     }
   }
 }