#include <bits/stdc++.h>
using namespace std;
int n, m;
int U[5005], V[5005];
struct emm {
  int a, b, x;
} a[5005];
bool cmp(emm x, emm y) { return x.x < y.x; }
struct Edge {
  int v;
  Edge *next;
} pool[5005 << 1], *h[5005];
int fa[5005], dep[5005], ans[5005];
int tot;
void addEdge(int u, int v) {
  Edge *p = &pool[tot++];
  p->v = v;
  p->next = h[u];
  h[u] = p;
}
void dfs(int u) {
  for (Edge *p = h[u]; p; p = p->next) {
    int v = p->v;
    if (v == fa[u]) continue;
    dep[v] = dep[u] + 1;
    fa[v] = u;
    dfs(v);
  }
}
int LCA(int u, int v) {
  if (dep[u] < dep[v]) swap(u, v);
  while (dep[u] > dep[v]) {
    u = fa[u];
  }
  if (u == v) return u;
  while (fa[u] != fa[v]) {
    u = fa[u];
    v = fa[v];
  }
  return fa[u];
}
void update(int u, int v, int x) {
  if (u == v) return;
  while (u != v) {
    ans[u] = x;
    u = fa[u];
  }
}
int check(int u, int v) {
  int res = 0x3f3f3f3f;
  if (u == v) return res;
  while (u != v) {
    res = min(res, ans[u]);
    u = fa[u];
  }
  return res;
}
int main() {
  scanf("%d", &n);
  for (int i = 1; i < n; i++) {
    scanf("%d%d", &U[i], &V[i]);
    addEdge(U[i], V[i]);
    addEdge(V[i], U[i]);
  }
  dep[1] = 1;
  dfs(1);
  scanf("%d", &m);
  for (int i = 1; i <= m; i++) scanf("%d%d%d", &a[i].a, &a[i].b, &a[i].x);
  sort(a + 1, a + m + 1, cmp);
  for (int i = 1; i <= m; i++) {
    int t = LCA(a[i].a, a[i].b);
    update(a[i].a, t, a[i].x);
    update(a[i].b, t, a[i].x);
  }
  for (int i = 1; i <= m; i++) {
    int t = LCA(a[i].a, a[i].b);
    if (min(check(a[i].a, t), check(a[i].b, t)) != a[i].x) {
      printf("-1\n");
      return 0;
    }
  }
  for (int i = 1; i < n; i++) {
    if (dep[U[i]] < dep[V[i]]) swap(U[i], V[i]);
    printf("%d ", max(ans[U[i]], 1));
  }
  printf("\n");
  return 0;
}
