import java.util.*;

public class lqlq {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        Map<String, ArrayList>menu=new TreeMap<>();

        String input= scanner.nextLine();
        int unliked=0;
        while (!input.equals("Stop")){

            String[]complect=input.split("-");
            String command=complect[0];

            switch (command){
                case"Like":
                    String guest=complect[1];
                    String meal=complect[2];
                    if(!menu.containsKey(guest)){
                        menu.put(guest,new ArrayList<String>());
                    }else{
                        List<String>eating=menu.get(guest);
                        if(!eating.contains(meal)){
                            eating.add(meal);
                        }
                    }
                    break;
                case"Unlike":
                    String Guest=complect[1];
                    String Meal=complect[2];
                    if(!menu.containsKey(Guest)){
                        System.out.println(String.format("%s is not at the party.",Guest));
                    }else{
                        List<String> eatingU=menu.get(Guest);
                        if(!eatingU.contains(Meal)){
                            System.out.println(String.format("%s doesn't have the %s in his/her collection.",Guest,Meal));
                        }else{
                            unliked++;
                            eatingU.remove(Meal);
                        }
                    }
                    break;
                default:
                    throw new IllegalStateException("wrong input");
            }
            input=scanner.nextLine();
        }


        menu.entrySet()
                .stream()
                .sorted((a,b)->b.getValue().size()-a.getValue().size())
                .forEach(h->{
                    System.out.print(String.format("%s: ", h.getKey()));
                    System.out.println(String.join(", ", h.getValue()));
                });
        System.out.println(String.format("Unliked meals: %d",unliked));
    }
}