import java.util.*;

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


        Map<String, Map<String, Integer>> map = new HashMap<>();

        for(int i = 0; i < n; i++) {
            String komanda = scanner.next();
            if(komanda.equals("wish")) {
                String A = scanner.next(), B = scanner.next();

                map.putIfAbsent(A, new HashMap<>());

                Map<String, Integer> tmp_map = map.get(A);
                tmp_map.put(B, tmp_map.getOrDefault(B, 0) + 1);

            }
            else if(komanda.equals("ask")) {
                String komanda2 = scanner.next();
                if(komanda2.equals("employee")) {
                    String ime = scanner.next();
                    if(map.containsKey(ime)) {
                        System.out.println(map.get(ime).size());
                    }
                    else {
                        System.out.println(0);
                    }
                }
                else {
                    String A = scanner.next();
                    String B = scanner.next();

                    int AdoB = 0;
                    if(map.containsKey(A) && map.get(A).containsKey(B)) {
                        AdoB = map.get(A).get(B);
                    }

                    int BdoA = 0;
                    if(map.containsKey(B) && map.get(B).containsKey(A)) {
                        BdoA = map.get(B).get(A);
                    }

                    System.out.println(AdoB + BdoA);
                }

            }

        }
    }
}

/*

Ana -> Bob, Elena

Bob -> Ana


*/