#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define elif else if
#define vi vector<int>
#define vll vector<ll>
#define vvi vector<vi>
#define pii pair<int,int>


#define repname(a, b, c, d, e, ...) e
#define rep(...)                    repname(__VA_ARGS__, rep3, rep2, rep1, rep0)(__VA_ARGS__)
#define rep0(x)                     for (int rep_counter = 0; rep_counter < (x); ++rep_counter)
#define rep1(i, x)                  for (int i = 0; i < (x); ++i)
#define rep2(i, l, r)               for (int i = (l); i < (r); ++i)
#define rep3(i, l, r, c)            for (int i = (l); i < (r); i += (c))





struct ScalarInput {
    template<class T>
    operator T(){
        T ret;
        cin >> ret;
        return ret;
    }
};
struct VectorInput {
    size_t n;
    VectorInput(size_t n): n(n) {}
    template<class T>
    operator vector<T>(){
        vector<T> ret(n);
        for(T &x : ret) cin >> x;
        return ret;
    }
};
ScalarInput input(){ return ScalarInput(); }
VectorInput input(size_t n){ return VectorInput(n); }

template<typename T>
void print(vector<T> a){
  for(int i=0;i<a.size();i++){
    cout<<a[i]<<" \n"[i+1==a.size()];
  }
}

template<class T>
void print(T x){
    cout << x << '\n';
}
 
template <class Head, class... Tail>
void print(Head&& head, Tail&&... tail){
  cout << head << ' ';
  print(forward<Tail>(tail)...);
}

template <typename G>
struct DoublingLowestCommonAncestor {
  const int LOG;
  vector<int> dep;
  const G &g;
  vector<vector<int> > table;

  DoublingLowestCommonAncestor(const G &g)
      : g(g), dep(g.size()), LOG(32 - __builtin_clz(g.size())) {
    table.assign(LOG, vector<int>(g.size(), -1));
  }

  void dfs(int idx, int par, int d) {
    table[0][idx] = par;
    dep[idx] = d;
    for (auto &to : g[idx]) {
      if (to != par) dfs(to, idx, d + 1);
    }
  }

  void build() {
    dfs(0, -1, 0);
    for (int k = 0; k + 1 < LOG; k++) {
      for (int i = 0; i < table[k].size(); i++) {
        if (table[k][i] == -1) table[k + 1][i] = -1;
        else table[k + 1][i] = table[k][table[k][i]];
      }
    }
  }

  int query(int u, int v) {
    if (dep[u] > dep[v]) swap(u, v);
    for (int i = LOG - 1; i >= 0; i--) {
      if (((dep[v] - dep[u]) >> i) & 1) v = table[i][v];
    }
    if (u == v) return u;
    for (int i = LOG - 1; i >= 0; i--) {
      if (table[i][u] != table[i][v]) {
        u = table[i][u];
        v = table[i][v];
      }
    }
    return table[0][u];
  }

  int query0(int u, int v) {
    if (dep[u] > dep[v]) swap(u, v);
    for (int i = LOG - 1; i >= 0; i--) {
      if (((dep[v] - dep[u]) >> i) & 1) v = table[i][v];
    }
    if (u == v) return u;
    for (int i = LOG - 1; i >= 0; i--) {
      if (table[i][u] != table[i][v]) {
        u = table[i][u];
        v = table[i][v];
      }
    }
    return u;
  }
};


int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int N,Q;
  cin>>N>>Q;
  vector<vector<int>>edge(N);
  rep(N-1){
    int u,v;
    cin>>u>>v;
    u--;v--;
    edge[u].push_back(v);
    edge[v].push_back(u);
  }
  DoublingLowestCommonAncestor<vector<vector<int>>>LCA(edge);
  LCA.build();
  vector<int>par(N,-1);
  par[0]=-2;
  vector<int>todo,sz(N,1);
  todo.push_back(0);
  while(!todo.empty()){
    int v=todo.back();
    todo.pop_back();
    if(v<0){
      v=~v;
      sz[par[v]]+=sz[v];
    }
    for(auto u:edge[v]){
      if(par[u]==-1){
        par[u]=v;
        todo.push_back(~u);
        todo.push_back(u);
      }
    }
  }

  vector<int>ng(Q,-1);
  auto query=[&](int qi){
    int K;
    cin>>K;
    vector<int>A=input(K);
    for(int i=0;i<K;i++)A[i]--;
    vector<int>B=A;
    sort(B.begin(),B.end());
    rep(i,K-1){
      if(B[i]==B[i+1]){
        print("No");
        return;
      }
    }
    vector<pair<int,int>>stc;
    for(int i=1;i<K;i++){
      int frm=A[i-1];
      int to=A[i];
      if(to==0){
          print("No");
          return;
        }
      if(par[to]==frm){
        stc.push_back({to,1});
      }
      else{
        int L=LCA.query(to,frm);
        if(L!=par[to]){
          print("No");
          return;
        }
        if(ng[to]==qi){
          print("No");
          return;
        }
        int prev=LCA.query0(frm,L);
        ng[prev]=qi;
        int p=par[to];
        while(!stc.empty()){
          if(stc.back().first==p)break;
          else{
            auto [v,S]=stc.back();
            stc.pop_back();
            if(sz[v]!=S){
              print("No");
              return;
            }
            if(!stc.empty()){
              stc.back().second+=S;
            }
          }
        }
        stc.push_back({to,1});
      }
    }
    print("Yes");
    return;
  };

  rep(qi,Q){
    query(qi);
  }
}