#include <iostream>
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const ll maxn = 5*1e5+5, INF = 4e18+9;
struct Tree{
int n, root;
vector<int> depth, head, sz, pa;
vector<int> f;
Tree(int n, int root, vector<vector<int>> &adj): n(n), root(root){
depth.resize(n+1, -1);
head.resize(n+1);
sz.resize(n+1, 0);
pa.resize(n+1, -1);
auto rootTree = [&](auto rootTree, int u, int p) -> void{
depth[u] = depth[p]+1;
pa[u] = p;
sz[u] = 1;
for(int v : adj[u]){
if(v == p) continue;
rootTree(rootTree, v, u);
sz[u] += sz[v];
}
};
rootTree(rootTree, root, 0);
auto decompose = [&](auto decompose, int u, int h) -> void{
head[u] = h;
int heavy = -1;
for(int v : adj[u]){
if(v == pa[u]) continue;
if(heavy == -1 || sz[heavy] < sz[v]) heavy = v;
}
if(heavy != -1) decompose(decompose, heavy, h);
for(int v : adj[u]){
if(v == pa[u] || v == heavy) continue;
decompose(decompose, v, v);
}
};
decompose(decompose, root, root);
f = [&]{
vector<array<int, 2>> first(n+1);
vector<array<int, 2>> second(n+1);
function<void(int, int)> dfs0 = [&](int u, int p) {
first[u] = second[u] = {0, -1};
for (int v : adj[u]) {
if (v == p) {
continue;
}
dfs0(v, u);
auto fetch = first[v];
fetch[0] += 1;
fetch[1] = v;
if (fetch > first[u]) {
swap(fetch, first[u]);
}
if (fetch > second[u]) {
swap(fetch, second[u]);
}
}
};
dfs0(1, 0);
function<void(int, int)> dfs = [&](int u, int p) {
for (int v : adj[u]) {
if (v == p) {
continue;
}
auto fetch = first[u][1] == v ? second[u] : first[u];
fetch[0] += 1;
fetch[1] = u;
if (fetch > first[v]) {
swap(fetch, first[v]);
}
if (fetch > second[v]) {
swap(fetch, second[v]);
}
dfs(v, u);
}
};
dfs(1, 0);
vector<int> f(n+1);
for (int u = 1; u <= n; u++) {
f[u] = first[u][0];
}
return f;
}();
};
int lca(int u, int v){
for(; head[u] != head[v]; v = pa[head[v]]){
if(depth[head[u]] > depth[head[v]]) swap(u, v);
}
if(depth[u] > depth[v]) swap(u, v);
return u;
}
int dist(int u, int v) {
return depth[u]+depth[v]-2*depth[lca(u, v)];
}
};
void solve(){
int n;
cin >> n;
vector<vector<int>> adj(n+1);
for(int i = 1; i < n; i++){
int u, v;
cin >> u >> v;
adj[u].push_back(v);
adj[v].push_back(u);
}
Tree Y(n, 1, adj);
int m;
cin >> m;
vector<int> s(m+1), t(m+1);
for(int i = 1; i <= m; i++){
cin >> s[i] >> t[i];
}
vector<vector<int>> g(m+1);
for(int i = 1; i <= m; i++){
for(int j = 1; j <= m; j++){
if(i == j) continue;
if(Y.dist(s[i], s[j]) + Y.dist(s[j], t[i]) == Y.dist(s[i], t[i])){
g[i].push_back(j);
}
}
}
vector<int> vis(m+1, 0);
bool ok = true;
auto dfs = [&](auto dfs, int u) -> void{
vis[u] = 1;
for(int v : g[u]){
if(vis[v] == 1){
ok = false;
return;
}
if(vis[v] == 2){
continue;
}
dfs(dfs, v);
}
vis[u] = 2;
};
for(int i = 1; i <= m; i++){
if(vis[i] == 0){
dfs(dfs, i);
}
}
if(ok){
cout << "Yes";
}else{
cout << "No";
}
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t;
cin >> t;
while(t--){
solve();
cout << "\n";
}
return 0;
}
