#include<stdio.h>
#include<string.h>
#include<algorithm>
#include<vector>
#include<set>
#include<map>
#include<string>
#include<iostream>

using namespace std;

#define x first
#define y second

string s[105], S;
map<string, int> mymap;
int answer, n;
char car;

int main (){

    for(int i = 1; i <= 26; i++){
        cin >> car;
        cin >> s[car - 'a'];
    }
    cin >> n;
    for(int i = 1; i <= n; i++){
        string morse = "";
        cin >> S;
        int lim = S.size();
        for(int j = 0; j < lim; j++){
            morse += s[S[j] - 'a'];
        }
        mymap[morse]++;
        answer = max(answer, mymap[morse]);
    }
    
    if(answer == 1)
        cout << -1 << endl;
    else
        cout << answer << endl;
    return 0;
}