#include "bits/stdc++.h"
using namespace std;
#define ll long long
#define endl '\n'
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define rep2(i,a,b) for(int i=int(a);i<int(b);i++)
#define pb emplace_back
#define all(x) (x).begin(),(x).end()
int mod=1e9+7;
int mod2=998244353;
const int INF=1e9;

signed main(){
	ll n;
	while(1){
		cin>>n;
		if(n==0)break;
		vector<ll> p[n];
		rep(i,n){
			ll m;
			cin>>m;
			rep(j,m){
				ll a;
				cin>>a;
				p[i].push_back(a);
			}
		}
		ll k;
		cin>>k;
		vector<ll> l(k);
		rep(i,k)cin>>l[i];

		ll ans=-1;
		rep(i,n){
			bool f;
			rep(j,k){
				f=false;
				rep(m,p[i].size()){
					if(l[j]==p[i][m]){
						f=true;
						break;
					}
				}
				if(!f)break;
			}
			if(f){
				if(ans==-1)ans=i+1;
				else ans=-2;
			}
		}
		if(ans>0)cout<<ans<<endl;
		else cout<<-1<<endl;
	}
}

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