#include<bits/stdc++.h>
namespace {
#include<atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i,n)for (int i = 0; i < int(n); ++i)
#define rrep(i,n)for (int i = int(n)-1; i >= 0; --i)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template<class T> void chmax(T& a, const T& b) {a = max(a, b);}
template<class T> void chmin(T& a, const T& b) {a = min(a, b);}
using ll = long long;
using ull = unsigned long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

constexpr int MX = 100000;
vector<pair<int, ull>> g[MX];
int in_time[MX], out_time[MX];
ull a_par[MX];

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  rep(i, n - 1) {
    int l, r;
    ull a;
    cin >> l >> r >> a;
    l--;
    r--;
    g[l].emplace_back(r, a);
    g[r].emplace_back(l, a);
  }
  int time = 0;
  auto dfs = [&](auto self, int u, int p) -> void {
    in_time[u] = time;
    time++;
    for(auto [v, a] : g[u]) {
      if (v != p) {
        a_par[time] = a;
        self(self, v, u);
      }
    }
    out_time[u] = time;
  };
  dfs(dfs, 0, -1);
  int q;
  cin >> q;
  rep(_, q) {
    int t, x;
    cin >> t >> x;
    x--;
    if (t == 1) {
      int l = in_time[x], r = out_time[x];
      memset(&a_par[l], 0, sizeof(ull) * (r - l));
    } else {
      ull ans = 0;
      int l = in_time[x] + 1, r = out_time[x];
      assert(0 <= l && l <= r && r <= MX);
      for(int i = l; i < r; i++) ans ^= a_par[i];
      cout << ans << '\n';
    }
  }
}