#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define all(p) p.begin(),p.end()
#define rep(i,a,b) for(int i=(int)a;i<(int)b;i++)
const int mod=998244353;

namespace po167{
long long rev(long long a,long long mod){
	a%=mod;
	long long ans=1;
	long long H=mod-2;
	while(H){
		if(H&1) ans=(ans*a)%mod;
		a=(a*a)%mod;
		H>>=1;
	}
	return ans;
}
long long Determinant_Matrix(std::vector<std::vector<long long>> G,long long MOD){
	int N=G.size();
	long long ans=1;
	for(int i=0;i<N;i++){
		for(int j=i;j<N;j++){
			G[j][i]=(G[j][i]%MOD+MOD)%MOD;
			if(G[j][i]!=0){
				if(j!=i){
					for(int k=i;k<N;k++){
						std::swap(G[i][k],G[j][k]);
					}
					ans*=-1;
				}
				break;
			}
		}
		if(G[i][i]==0){
			return 0;
		}
		ans=(ans*G[i][i])%MOD;
		long long R=rev(G[i][i],MOD);
		for(int j=i+1;j<N;j++){
			long long D=(R*G[j][i])%MOD;
			for(int k=i;k<N;k++){
				G[j][k]=(G[j][k]-(D*G[i][k])%MOD+MOD)%MOD;
			}
		}
	}
	return (ans+MOD)%MOD;
}
//行列木定理
long long Kirchhoffs_theorem(std::vector<std::vector<long long>> G,int MOD){
	int N=G.size();
	std::vector<std::vector<long long>> H(N-1,std::vector<long long>(N-1));
	for(int i=0;i<N-1;i++){
		for(int j=0;j<N;j++){
			if(i==j) continue;
			H[i][i]=(H[i][i]+G[i][j])%MOD;
			if(j!=N-1){
				H[i][j]=(MOD-G[i][j])%MOD;
			}
		}
	}
	return Determinant_Matrix(H,MOD);
}
}
using po167::Determinant_Matrix;
using po167::Kirchhoffs_theorem;


int main(){
	int N,K;
	cin>>N>>K;
	vector<vector<pair<int,int>>> p(K);
	rep(i,0,K){
		int T;
		cin>>T;
		p[i].resize(T);
		rep(j,0,T){
			int a,b;
			cin>>a>>b;
			a--,b--;
			p[i][j]={a,b};
		}
	}
	ll ans=0;
	rep(i,0,1<<K){
		ll S=1;
		vector G(N,vector<ll>(N));
		rep(j,0,K){
			if(i&(1<<j)){
				for(auto x:p[j]) G[x.first][x.second]++,G[x.second][x.first]++;
			}
			else S*=-1;
		}
		ll tmp=Kirchhoffs_theorem(G,mod);
		ans=ans+S*tmp;
	}
	cout<<(ans%mod+mod)%mod<<"\n";
}