import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################
mod = 998244353
n, m = na()
a = [0] * n
z = 1
for i in range(m):
    p = na()
    for j in p[1:]:
        a[j-1] |= z
    z <<= 1

ans = len(set(a))
print(pow(2,ans, mod))