#include <atcoder/all>
#include <vector>
#include <set>
#include <iostream>
#include <bitset>
#include <unordered_set>
using namespace std;

const int MAX_N = 510;
using bit = bitset<MAX_N>;

int main()
{
    int n, m;
    cin >> n >> m;
    vector<bit> a(m), contain(n);
    for (int i = 0; i < m; i++)
    {
        int l;
        cin >> l;
        for (int j = 0; j < l; j++)
        {
            int v;
            cin >> v;
            v--;
            a[i][v] = 1;
        }
    }

    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            if (a[j][i] == 1)
            {
                contain[i][j] = 1;
            }
        }
    }
    unordered_set<bit> sets;
    for (int i = 0; i < n; i++)
    {
        sets.insert(contain[i]);
    }
    int size = sets.size();
    cout << atcoder::pow_mod(2, size, 998244353) << endl;
    return 0;
}