//import java.util.Scanner;
import java.util.*;

class exchange{
public static void main(String[] args)
{
  Scanner sc = new Scanner(System.in);
  while(sc.hasNext())
  {
    String temp = sc.nextLine();
    if(temp.compareTo("0 END")==0) System.exit(0);
    String[] sub = temp.split("[ ]");
    int N = Integer.valueOf(sub[0]); 
    
    String[][] bid = new String[N][3];
    System.out.println(sub[1]);
    for(int i = 0; i < N; i++)
    {
      String temp2 =sc.nextLine();
      String[] temp3 = temp2.split("[ ]");

      bid[i][0]=temp3[0];
      bid[i][1]=temp3[1];
      bid[i][2]=temp3[2];
      
    }
    for(int i = 0; i < N; i++)
    {
      System.out.print(bid[i][0] +": ");
      int help = 0;
      for(int j=0; j< N; j++)
      {
        if((bid[i][1].compareTo("sell") == 0) && (bid[j][1].compareTo("buy")==0) && (Float.parseFloat(bid[j][2])>=Float.parseFloat(bid[i][2])))
        {
          System.out.print(bid[j][0] + " ");
          help++;
        }
        if((bid[i][1].compareTo("buy") == 0) && (bid[j][1].compareTo("sell") == 0)&& Float.parseFloat(bid[j][2])<=Float.parseFloat(bid[i][2]))
        {
          System.out.print(bid[j][0] + " ");
          help++;
        }
      }
      if(help == 0)
      {
        System.out.print("NO-ONE");
      }
      System.out.println();
    }
  }
}
}