#include <bits/stdc++.h>

using namespace std;

const int Nmax = 1e5+5;
string s[Nmax], code[30], Code;
int  i, n, cnt, ans; char letter;

string morse(string s)
{
    string a; int i, j;
    for(i=0; i<s.size(); ++i)
        for(j=0; j<code[s[i]-'a'].size(); ++j)
            a.push_back(code[s[i]-'a'][j]);

    return a;
}

int main()
{
  //  freopen("input", "r", stdin);
   // freopen("output", "w", stdout);

    for(i=0; i<26; ++i)
    {
        cin >> letter >> Code;
        code[letter - 'a'] = Code;
    }

    cin >> n;
    for(i=1; i<=n; ++i)
    {
        cin >> s[i];
        s[i] = morse(s[i]);
    }

    sort(s+1, s+n+1);

    for(i=1; i<=n; ++i)
        if(s[i]==s[i-1]) ++cnt;
        else
        {
            if(cnt>ans) ans = cnt;
            cnt = 1;
        }

    if(cnt>ans) ans = cnt;

    if(ans < 2) ans = -1;
    cout << ans << '\n';

    return 0;
}