#include <bits/stdc++.h>

using namespace std;

// Optimization stuff
inline void debugMode() {
    #ifndef ONLINE_JUDGE
    freopen("debug.in", "r", stdin);
    #endif // ONLINE_JUDGE
}

inline void optimizeIt() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);
}
// End optimization stuff

inline double ABS(const int &x) {
    return max(x, -x);
}

inline bool isPrime(const int &x) {
    if(x == 1) return false;

    for(int d = 2; d * d <= x; d++) {
        if(x % d == 0) return false;
    }

    return true;
}

const int NMax = 1e6 + 5;
const int LIM = 1e6;
const int MOD = 1e7 + 7;

string v[40];

int main(){
    debugMode();
    optimizeIt();

    for(int i = 0; i < 26; i++) {
        char c;
        cin >> c >> v[i];
    }

    int n;
    cin >> n;

    map < string, int > Map;
    for(int i = 1; i <= n; i++) {
        string s;
        cin >> s;

        string aux ("");
        for(auto const &it: s) {
            aux = aux + v[it - 'a'];
        }

        Map[aux]++;
    }

    int best = 0;
    for(auto const &it: Map) {
        best = max(best, it.second);
    }

    if(best == 1) {
        cout << "-1";
    } else {
        cout << best;
    }

    return 0;
}