#include <iostream>
#include <queue>
#include <vector>
using namespace std;
const int maxn = 1e5 + 10;
const int INF = 1e9;
int root[maxn];
int find_root(int x) {
    while(root[x] != x) {
        root[x] = root[root[x]];
        x = root[x];
    }
    return x;
}
bool check(int A, int B) {
    int root_A = find_root(A);
    int root_B = find_root(B);
    return root_A == root_B;
}
void unite(int A, int B) {
    int root_A = find_root(A);
    int root_B = find_root(B);
    root[root_A] = root_B;
}
int main() {
    for(int i = 0; i < maxn; i++) {
        root[i] = i;
    }

    while(true) {
        string s;
        cin >> s;

        if(s == "union") {
            int a, b;
            cin >> a >> b;
            unite(a, b);
        }
        else {
            int a, b;
            cin >> a >> b;

            if(check(a, b)) {
                cout << "YES" << endl;
            }
            else {
                cout << "NO" << endl;
            }

        }
    }
    return 0;
}