MOD = 998244353
N, K = map(int, input().split())
edges = [[] for _ in range(K)]
for i in range(K):
    T = int(input())
    for _ in range(T):
        u, v = map(lambda x: x - 1, map(int, input().split()))
        edges[i].append((u, v))

ans = 0

for bit in range(1, 1 << K):
    mat = [[0] * N for _ in range(N)]
    sig = 1
    for i in range(K):
        if (bit >> i) & 1: 
            for u, v in edges[i]:
                mat[u][u] += 1
                mat[v][v] += 1
                mat[u][v] -= 1
                mat[v][u] -= 1
        else:
            sig *= -1
    mat = [[mat[i][j] % MOD for j in range(N - 1)] for i in range(N - 1)]
    res = 1
    f = 0
    for i in range(N - 1):
        if mat[i][i] == 0:
            for j in range(i + 1, N - 1):
                if mat[j][i] == 0:
                    continue
                mat[i], mat[j] = mat[j], mat[i]
                res *= -1
                break
            else:
                f = 1
                res = 0
                break
        if f:
            break
        res *= mat[i][i]
        res %= MOD
        invs = pow(mat[i][i], MOD - 2, MOD)
        for j in range(i, N - 1):
            mat[i][j] *= invs
            mat[i][j] %= MOD
        for j in range(i + 1, N - 1):
            a = mat[j][i]
            for k in range(i, N - 1):
                mat[j][k] -= a * mat[i][k]
                mat[j][k] %= MOD
    for i in range(N - 1):
        res *= mat[i][i]
        res %= MOD
    # print(res)
    ans += res * sig
    ans %= MOD

print(ans)