#include <bits/stdc++.h>
using namespace std;
#define ios ios_base::sync_with_stdio(false);cin.tie(0);
#define setnow clock_t tStart=clock();
#define time (double)(clock() - tStart)/CLOCKS_PER_SEC;
//#define setin(x) ifstream cin(x);
//#define setout(x) ofstream cout(x);
typedef long long ll;
typedef long long int lli;
typedef pair < int, int> dbl;
const int maxInt = 1e9*2;
const lli maxLong = 1e18*2;
map <char, string> alph;
map <string, int> nbr;
int main(){
		//ifstream cin("input.in");
		int ans = 0;
		for(int i=0;i<26;i++){
				char ch;
				string str;
				cin >> ch >> str;
				alph[ch] = str;
		}
		int n;
		cin >> n;
		for(int i=0;i<n;i++){
			string str;
			cin >> str;
			string repr="";
			for(unsigned j=0;j<str.size();j++)
				repr+=alph[str[j]];
			nbr[repr]++;
			ans = max(ans, nbr[repr]);
		}
		if(ans==1)
			return cout << -1, 0;
		cout << ans << endl;
			
}