#include <bits/stdc++.h>

using namespace std;

int N, sol = -1;
char c;
string a[26], cuv;

map < string, int > H;

int main() {
    for (int i = 1; i <= 26; ++i) {
        cin >> c >> cuv;
        a[c - 'a'] = cuv;
    }

    cin >> N;
    for (int i = 1; i <= N; ++i) {
        cin >> cuv;
        string res = "";

        for (int j = 0; j < cuv.size(); ++j) {
            res += a[cuv[j] - 'a'];
        }

        ++H[res];
        sol = max(sol, H[res]);
    }

    if (sol <= 0) {
        cout << -1 << '\n';
    } else {
        cout << sol << '\n';
    }
    return 0;
}