#include <bits/stdc++.h>

#define pb push_back
#define mp make_pair
#define mt make_tuple
#define ll long long
#define pii pair<int,int>
#define tii tuple <int,int,int>
#define N 100005
#define mod 2000003
#define X first
#define Y second
#define eps 0.0000000001
#define all(x) x.begin(),x.end()
#define tot(x) x+1,x+n+1
using namespace std;
map<char, string>M;
map<string, int>Sol;
int i, n, sol, m, j;
char c;
string s, sc;
int main() {
    cin.sync_with_stdio(0);
    cout.sync_with_stdio(0);

    for(i = 0; i < 26; i++) {
        cin >> c >> s;
        M[c] = s;
    }

    cin >> n;
    sol = 0;

    for(i = 1; i <= n; i++) {
        cin >> s;
        m = s.size();
        sc = "";

        for(j = 0; j < m; j++)
            sc += M[s[j]];

        Sol[sc]++;
        sol = max(sol, Sol[sc]);
    }

    if(sol < 2)
        sol = -1;

    cout << sol;
    return 0;
}