#include <iostream>
#include <map>
#include <vector>
#include <cstdio>
using namespace std;

vector <string> dict;
map <string , int > subsets;
int n;
string word, code;
char x;

int main()
{
    //freopen("txt.in", "r", stdin);

    for(int i = 1; i <= 26; ++i) {
        cin >> x >> code;
        dict.push_back(code);
    }

    cin >> n;
    for(int i = 1; i <= n; ++i) {
        cin >> word;
        string key;
        for(const auto &it : word) {
            key += dict[it - 'a'];
        }
        subsets[key]++;
    }

    int maxx = -1;
    for(const auto &it : subsets) {
        if(it.second > maxx) {
            maxx = it.second;
        }
    }
    if(maxx == 1) maxx = -1;

    cout << maxx;

    return 0;
}