"""

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

"""

import sys
from sys import stdin
import random

N,M = map(int,stdin.readline().split())

lis = [0] * N

for loop in range(M):

    a = list(map(int,stdin.readline().split()))[1:]
    for i in range(len(a)):
        a[i] -= 1

    aset = set(a)

    r1 = random.randint(0,10**18)
    r2 = random.randint(0,10**18)

    for i in range(N):
        if i in aset:
            lis[i] ^= r1
        else:
            lis[i] ^= r2

part = len(set(lis))
print (pow(2,part,998244353))