## https://yukicoder.me/problems/no/2134

import random

MOD = 998244353

def main():
    N, M = map(int, input().split())
    sets = []
    for _ in range(M):
        values = tuple(map(int, input().split()))
        sets.append(values[1:])

    s_set = set()
    while len(s_set) < M:
        a = random.randint(1, 2 ** 63)    
        s_set.add(a)
    zoblist_hash = list(s_set)


    elements = [0] * N
    for i, s in enumerate(sets):
        for v in s:
            elements[v - 1] ^= zoblist_hash[i]
    
    ans_set = set(elements)
    l = len(ans_set)
    print(pow(2, l, MOD))
    





if __name__ == "__main__":
    main()