n, m = map(int, input().split())
A = [set() for _ in range(0,m)]
contain = [set() for _ in range(0,n)]
for i in range(m):
    l, *a = map(int, input().split())
    for aj in a:
        A[i].add(aj-1)

for i in range(0,n):
    for j in range(0,m):
        if i in A[j]:
            contain[i].add(j)

sets = set()
for i in range(0,n):
    sets.add(frozenset(contain[i]))

size = len(sets)
print(pow(2,size,998244353))