/**
____ ____ ____ ____ ____ ____
||l |||e |||i |||n |||a |||d ||
||__|||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|/__\|
**/
#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
typedef long long ll;
void speed()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
}
const int maxn = 2e5 + 10;
int n, m, s[maxn], t[maxn];
vector < int > adj[maxn];
void input()
{
cin >> n;
for (int i = 1; i < n; i ++)
{
int a, b;
cin >> a >> b;
adj[a].push_back(b);
adj[b].push_back(a);
}
cin >> m;
for (int i = 1; i <= m; i ++)
{
cin >> s[i] >> t[i];
}
}
int tin[maxn], tout[maxn], occ[2 * maxn], depth[maxn], timer;
void dfs(int v = 1, int p = -1)
{
tin[v] = ++ timer;
occ[timer] = v;
for (int u : adj[v])
{
if (u == p)
continue;
depth[u] = depth[v] + 1;
dfs(u, v);
occ[++ timer] = v;
}
tout[v] = timer;
}
const int maxlog = 20;
int dp[maxlog][maxn * 2], lg[2 * maxn];
void build_sparse_table()
{
for (int i = 1; i <= timer; i ++)
{
dp[0][i] = occ[i];
lg[i] = lg[i / 2] + 1;
}
for (int j = 1; j < lg[timer]; j ++)
{
for (int i = 1; i <= timer - (1 << j) + 1; i ++)
{
dp[j][i] = dp[j - 1][i + (1 << (j - 1))];
if (depth[dp[j - 1][i]] < depth[dp[j][i]])
dp[j][i] = dp[j - 1][i];
}
}
}
int get_lca(int v, int u)
{
int l = tin[v], r = tin[u];
if (l > r)
swap(l, r);
int len = lg[r - l + 1] - 1;
int lca = dp[len][r - (1 << len) + 1];
if (depth[dp[len][l]] < depth[lca])
lca = dp[len][l];
return lca;
}
vector < int > graph[maxn];
bool is_cycle;
bool in_subtree(int v, int u)
{
return (tin[v] <= tin[u] && tout[v] >= tout[u]);
}
bool on_path(int v, int u, int w)
{
int lca = get_lca(v, u);
if (in_subtree(lca, w) && in_subtree(w, v))
return true;
if (in_subtree(lca, w) && in_subtree(w, u))
return true;
return false;
}
void check_prisoners(int i, int j)
{
if (on_path(s[i], t[i], s[j]) && on_path(s[i], t[i], t[j]))
{
is_cycle = true;
return;
}
if (on_path(s[i], t[i], s[j]))
{
graph[i].push_back(j);
return;
}
if (on_path(s[i], t[i], t[j]))
{
graph[j].push_back(i);
return;
}
}
void build_graph()
{
for (int i = 1; i <= m; i ++)
{
for (int j = 1; j <= m; j ++)
{
if (i != j)
check_prisoners(i, j);
}
}
}
int used[maxn];
void check_dag(int v)
{
used[v] = 1;
for (int u : graph[v])
{
if (used[u] == 2)
continue;
///cout << v << " : " << u << endl;
if (used[u] == 1)
is_cycle = 1;
else
{
check_dag(u);
}
}
used[v] = 2;
}
void check_graph()
{
for (int i = 1; i <= m; i ++)
{
if (!used[i])
check_dag(i);
}
if (is_cycle)
cout << "No" << endl;
else
cout << "Yes" << endl;
}
void clear_data()
{
is_cycle = false;
for (int i = 1; i <= m; i ++)
graph[i].clear(), used[i] = 0;
for (int i = 1; i <= n; i ++)
{
adj[i].clear();
}
timer = 0;
}
void solve()
{
input();
dfs();
build_sparse_table();
build_graph();
check_graph();
clear_data();
}
int main()
{
speed();
int q;
cin >> q;
while(q --)
solve();
return 0;
}
