#include <bits/stdc++.h>
using namespace std;
const long long MOD = 998244353;
int main(){
  int N, M;
  cin >> N >> M;
  vector<int> l(M);
  vector<vector<int>> a(M);
  for (int i = 0; i < M; i++){
    cin >> l[i];
    a[i] = vector<int>(l[i]);
    for (int j = 0; j < l[i]; j++){
      cin >> a[i][j];
      a[i][j]--;
    }
  }
  vector<vector<bool>> S(N, vector<bool>(M, false));
  for (int i = 0; i < M; i++){
    for (int j = 0; j < l[i]; j++){
      S[a[i][j]][i] = true;
    }
  }
  sort(S.begin(), S.end());
  S.erase(unique(S.begin(), S.end()), S.end());
  int cnt = S.size();
  long long ans = 1;
  for (int i = 0; i < cnt; i++){
    ans *= 2;
    ans %= MOD;
  }
  cout << ans << endl;
}