#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define int long long
#define pb push_back
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define ordered_set tree<ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update>
#define ordered_multiset tree<type1, null_type, less_equal<type1>, rb_tree_tag, tree_order_statistics_node_update>;
using namespace std;
using namespace __gnu_pbds;
const int mod = 1e9+7;
const double PI = acos(-1.0);
const double epsilon = 1e-6;
const int N = 1.2e5+5;
vector<int> g[N];
int sz[N], d[N], h[N], up[20][N];
int top[N], chain[N], tin[N], tout[N], rt, timer;
void clean(){
d[1] = 0;
for(int i = 1; i < N; i++){
g[i].clear();
for(int j = 0; j < 20; j++) up[j][i] = 0;
}
}
struct SegmentTree{
int tree[N * 4];
int lazy[N * 4];
void push(int v, int tl, int tr) {
if (lazy[v] == 0) return;
if (tl != tr) {
lazy[v * 2] += lazy[v];
lazy[v * 2 + 1] += lazy[v];
}
tree[v] += lazy[v];
lazy[v] = 0;
}
void update(int l, int r, int x, int v, int tl, int tr) {
push(v, tl, tr);
if (l > tr || tl > r) return ;
if (l <= tl && tr <= r) {
lazy[v] = x;
push(v, tl, tr);
return;
}
int tm = (tl + tr) / 2;
update(l, r, x, v * 2, tl, tm);
update(l, r, x, v * 2 + 1, tm + 1, tr);
tree[v] = tree[v * 2] + tree[v * 2 + 1];
}
int get(int v, int tl, int tr, int l, int r) {
push(v, tl, tr);
if (l > tr || tl > r) return 0;
if (l <= tl && tr <= r)return tree[v];
int tm = (tl + tr) / 2;
return get(v * 2, tl, tm, l, r) + get(v * 2 + 1, tm + 1, tr, l, r);
}
void clean(){
for(int i = 0; i < N * 4; i++) tree[i] = 0,lazy[i] = 0;
}
};
SegmentTree seg;
void dfs(int u, int p){
up[0][u] = p;
for ( int i = 1; i < 20; i++ ){
up[i][u] = up[i - 1][up[i - 1][u]];
}
sz[u] = 1;
for ( auto &v: g[u] ){
if ( v != p ){
d[v] = d[u] + 1;
dfs(v, u);
sz[u] += sz[v];
}
}
for ( auto &v: g[u] ){
if ( v != p ){
if ( h[u] == -1 || sz[h[u]] < sz[v] ){
h[u] = v;
}
}
}
}
int lca(int u, int v){
if ( d[u] < d[v] ) swap(u, v);
int df = d[u] - d[v];
for ( int i = 0; i < 20; i++ ){
if ( df >> i & 1 ){
u = up[i][u];
}
}
if ( u == v ){
return u;
}
for ( int i = 19; i >= 0; i-- ){
if ( up[i][u] != up[i][v] ){
u = up[i][u];
v = up[i][v];
}
}
return up[0][u];
};
void HLD(int u, int p){
tin[u] = ++timer;
chain[u] = rt;
if ( top[rt] == -1 ){
top[rt] = u;
}
if ( h[u] != -1 ) HLD(h[u], u);
for ( auto &v: g[u] ){
if ( v != p && h[u] != v ){
rt++; HLD(v, u);
}
}
tout[u] = timer;
}
void upd(int u,int v,int val){
if ( d[u] < d[v] ) swap(u, v);
while ( chain[u] != chain[v] ){
int nxt = top[chain[u]];
seg.update(tin[nxt],tin[u],val,1,1,N);
u = up[0][nxt];
}
seg.update(tin[v],tin[u],val,1,1,N);
}
void update(int u,int v, int val){
int lc = lca(u,v);
upd(u,lc,val); upd(v,lc,val);
seg.update(tin[lc],tin[lc],-val,1,1,N);
}
void solve(){
int n; cin >> n;
for(int i = 1; i < n; i++){
int u,v; cin >> u >> v;
g[u].pb(v); g[v].pb(u);
}
int m; cin >> m;
vector<pair<int,int> > qr(m);
for(auto &[l,r] : qr) cin >> l >> r;
seg.clean();
for(int i = 0; i < N; i++) top[i] = -1, h[i] = -1;
rt = 0; timer = 0;
dfs(1,1); HLD(1,1);
for(auto [u,v] : qr) update(u,v,1);
vector<int> cnt(m);
for(int i = 0; i < m; i++){
for(int j = 0; j < m; j++){
if(i == j) continue;
auto [u,v] = qr[i];
int goal = qr[j].ff;
int lc = lca(u,v);
if(((tin[goal] <= tin[u] && tout[u] <= tout[goal]) ||
(tin[goal] <= tin[v] && tout[v] <= tout[goal])) &&
(tin[lc] <= tin[goal] && tout[goal] <= tout[lc])) cnt[i]++;
}
}
vector<int> vis(m);
for(int time = 0; time < m; time++){
bool ok = 0;
int ind = 0;
for(int i = 0; i < m; i++){
if(vis[i]) continue;
auto [u,v] = qr[i];
update(u,v,-1);
if(cnt[i] == 0 && seg.get(1,1,N,tin[v],tin[v]) == 0){
vis[i] = 1;
ok = 1;
ind = i;
break;
}else{
update(u,v,1);
}
}
if(!ok){
cout << "No\n";
clean();
return;
}
for(int i = 0; i < m; i++){
auto [u,v] = qr[i];
int goal = qr[ind].ff;
int lc = lca(u,v);
if(((tin[goal] <= tin[u] && tout[u] <= tout[goal]) ||
(tin[goal] <= tin[v] && tout[v] <= tout[goal])) &&
(tin[lc] <= tin[goal] && tout[goal] <= tout[lc])) cnt[i]--;
}
}
cout << "Yes\n";
clean();
}
main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int tt = 1;
cin >> tt;
while (tt--) {
solve();
}
}
