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

public class SegmentCount {

   static void countIfInteresting(Segment s)
     { if(s.isInteresting()) count(s);
     };

   public static void main(String [] args) throws IOException{
        FileReader dataFile = new FileReader("duckling");
        Word w1 = Word.readWord(dataFile);
        Word w2 = Word.readWord(dataFile);
        Word w3 = Word.readWord(dataFile);
        Word w4 = Word.readWord(dataFile);
        while(!w4.isEndoffileWord())
          { //an optimization "knowing" body of Segment.isInteresting
          if(w1.isStopword());
            else
              {countIfInteresting(new Segment(w1));
               countIfInteresting(new Segment(w1,w2));
               countIfInteresting(new Segment(w1,w2,w3));
               countIfInteresting(new Segment(w1,w2,w3,w4));};
            w1=w2;w2=w3;w3=w4;w4=Word.readWord(dataFile);
          };
        //the end
        countIfInteresting(new Segment(w1));
        countIfInteresting(new Segment(w1,w2));
        countIfInteresting(new Segment(w1,w2,w3));
        countIfInteresting(new Segment(w2));
        countIfInteresting(new Segment(w2,w3));
        countIfInteresting(new Segment(w3));
        
        //System.out.println(segmentCounts);
        
        //print out this occurring 3 or more times
        //HashMap has no iterator, so the following absurdities needed

        //Furthermore segmentCounts.entrySet() returns an Object
        //which is supposed to be of class Entry;
        //However Entry is an interface not implemented so
        //typecast and operations are nonexisting;
        //So compiler cannot eat
        //   Iterator itr = segmentCounts.entrySet().iterator();
        //   Entry keyVal; //"cannot resolve symbol"
        //   while( itr.hasNext())
        //     {keyVal = ((Entry)itr).next();// same here
        //     ...}
        // DESIGN BUG in Java libraries???
        

        //So only possible way: take keys out and iterate over those
        //in an inefficient way
        Iterator itr = segmentCounts.keySet().iterator();
        int count;
        Segment s;
        while( itr.hasNext())
            { s = (Segment)itr.next();
              count = ((IntegerVar)segmentCounts.get(s)).value;
              if(count >=3 && s.words.length>2)
                System.out.println(s+": "+count);};


    };

  private static HashMap segmentCounts = new HashMap(10000) ;
  
  private static class IntegerVar //to be use in segmentCounts
      {public int value;
       public IntegerVar(int i){value=i;};
       public void inc(){value++;};
       public String toString(){return ""+value;};}; 
  
  public static void count(Segment s)
   {Object foundSegCount;
    if( (foundSegCount = segmentCounts.get(s)) != null )
       ((IntegerVar)foundSegCount).inc();
    else
      segmentCounts.put(s, new IntegerVar(1));
   };

     
}