Подскажите, почему проверку не проходит.

String lines[] = p.split("[\\p{P}\\s]");
          int f = 0;
          for(String w : lines){
              if(w.equals("world"))

import java.io.*;
import java.lang.reflect.Array;
import java.util.ArrayList;

public class Solution {
        public static void main(String [] args)throws IOException{
            BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
            String s = reader.readLine();
            reader.close();
            FileReader reader1 = new FileReader(s);
            ArrayList<Character> ch = new ArrayList<>();
            while (reader1.ready()) {
                ch.add((char) reader1.read());
            }
            reader1.close();
            String p ="";
            for(char u : ch)
                p += u;
            String lines[] = p.split("[ .,:!?()\"-]");
            int f = 0;
            for(String w : lines){
                if(w.substring(0,5).equals("world"))
                    f++;
            }
            System.out.print(f);
        }
}