/*
 * SameSetOfWords
 *     Read in two lines (sentences) from the user.
 *     Determine if the two sentences use the same words,
 *     regardless of punctuation, repeated words, and letter-case.
 * Parke Godfrey
 * 2009-11-10
 */

import java.io.PrintStream;
import java.util.Scanner;

public class SameSetOfWords
{
    public static void main(String[] args)
    {
        PrintStream output = System.out;
        Scanner input = new Scanner(System.in);
        
        output.println("Enter the first sentence:");
        Scanner first = new Scanner(input.nextLine().toLowerCase());
        output.println("Enter the second sentence:");
        Scanner second = new Scanner(input.nextLine().toLowerCase());
        
        String secondSen = "..";
        for (; second.hasNext();)
        {
            secondSen += second.next().replaceAll("\\p{Punct}", "")
                        + ".";
        }
        
        String firstSen = "..";
        for (; first.hasNext();)
        {
            firstSen += first.next().replaceAll("\\p{Punct}", "")
                        + ".";
        }
        
        // Every word of first is in second.
        int start = 0;
        int end = 1;
        boolean secondMissing = false;
        while ((start < firstSen.length() - 1) && !secondMissing)
        {
            end = firstSen.indexOf(".", start + 1);
            String word = firstSen.substring(start, end + 1);
            
            if (secondSen.indexOf(word) < 0)
            {
                secondMissing = true;
            }
            start = end;
        }
        
        // Every word of second is in first.
        start = 0;
        end = 1;
        boolean firstMissing = false;
        while ((start < secondSen.length() - 1) && !firstMissing)
        {
            end = secondSen.indexOf(".", start + 1);
            String word = secondSen.substring(start, end + 1);
            
            if (firstSen.indexOf(word) < 0)
            {
                firstMissing = true;
            }
            start = end;
        }
        
        if (!firstMissing && !secondMissing)
        {
            output.println("The words used are the same.");
        } else if (firstMissing && !secondMissing)
        {
            output.println("Word in second not in first.");
        } else if (!firstMissing && secondMissing)
        {
            output.println("Word in first not in second.");
        } else
        {
            output.println("Words in each not in the other.");
        }
    }
}