#include <bits/stdc++.h>
using namespace std;
inline int read() {
  int x = 0, f = 1;
  char ch = getchar();
  while (ch < '0' || ch > '9') {
    if (ch == '-') f = -1;
    ch = getchar();
  }
  while (ch >= '0' && ch <= '9') {
    x = x * 10 + ch - '0';
    ch = getchar();
  }
  return x * f;
}
inline void print(int x) {
  if (x < 0) {
    putchar('-');
    x = -x;
  }
  if (x > 9) print(x / 10);
  putchar(x % 10 + '0');
}
const int N = 1e6 + 5;
const int maxn = 4e5 + 5;
int head[maxn], tot;
struct E {
  int to, next;
} e[maxn << 1];
void add(int u, int v) {
  e[tot] = {v, head[u]};
  head[u] = tot++;
}
int n, q;
int f[maxn][50], lg[maxn], dep[maxn];
void dfs(int u, int pre, int d) {
  f[u][0] = pre, dep[u] = d;
  for (int i = head[u]; i != -1; i = e[i].next) {
    int to = e[i].to;
    if (to != pre) dfs(to, u, d + 1);
  }
}
int LCA(int x, int y) {
  if (dep[x] < dep[y]) swap(x, y);
  int re = dep[x] - dep[y];
  for (int i = 0; (1 << i) <= re; i++) {
    if ((1 << i) & re) x = f[x][i];
  }
  if (x == y) return x;
  for (int i = log(n * 1.0) / log(2.0); i >= 0; i--)
    if (f[x][i] != f[y][i]) x = f[x][i], y = f[y][i];
  return f[x][0];
}
int a[maxn];
int main() {
  ios::sync_with_stdio(false);
  ;
  cin >> n >> q;
  memset(head, -1, sizeof(head));
  for (int i = 1; i < n; i++) {
    int u, v;
    cin >> u >> v;
    add(u, v);
    add(v, u);
  }
  dfs(1, -1, 0);
  for (int j = 0; (1 << (j + 1)) < n; j++) {
    for (int i = 1; i <= n; i++) {
      if (f[i][j] < 0)
        f[i][j + 1] = -1;
      else
        f[i][j + 1] = f[f[i][j]][j];
    }
  }
  for (int i = 1; i <= n; i++) lg[i] = lg[i - 1] + (i << lg[i - 1] == 1);
  while (q--) {
    int k;
    cin >> k;
    int Max_pos = -1, Max = 0;
    for (int i = 1; i <= k; i++) {
      cin >> a[i];
      if (Max < dep[a[i]]) Max = dep[a[i]], Max_pos = i;
    }
    bool flag = false;
    for (int i = 1; i <= k; i++) {
      if (Max_pos == i) continue;
      int x = LCA(a[i], a[Max_pos]);
      if (abs(dep[a[i]] - dep[x]) > 1) {
        flag = true;
        break;
      }
    }
    if (flag)
      cout << "NO\n";
    else
      cout << "YES\n";
  }
  return 0;
}
