#include <bits/stdc++.h>
#define _for(i, a, b) for (int i = (a); i <= (b); i++)
#define int long long
#define pb push_back
#define endl "\n"
using namespace std;

const int N = 2e5 + 10;

int n, m;
int c0, c1;
set<int> h[N];
map<string, int> ids[N];

int w[N], dp[N][2];
void dfs(int u) {
  dp[u][0] = dp[u][1] = 0;
  if (!h[u].size()) {
    if (w[u])
      dp[u][0] = 1, dp[u][1] = 0;
    else
      dp[u][0] = 0, dp[u][1] = 1;
  }
  for (auto j : h[u]) {
    dfs(j);
    dp[u][0] += min(dp[j][0], dp[j][1] + 1);
    dp[u][1] += min(dp[j][0] + 1, dp[j][1]);
  }
}
void solve() {
  cin >> c0 >> c1;

  int idx = 1;
  ids[1].clear(), h[1].clear(), w[1] = 0;
  _for(i, 1, c0 + c1) {
    string s;
    cin >> s;
    int rt = 1;
    for (int l = 0, r = 0; l < s.size(); l = r + 1, r = l) {
      while (r < s.size() && s[r] != '/') r++;
      string t = s.substr(l, r - l);
      if (!ids[rt].count(t)) {
        ids[rt][t] = ++idx;
        h[rt].insert(idx);
        h[idx].clear();
        ids[idx].clear();
        w[idx] = 0;
      }
      rt = ids[rt][t];
    }
    w[rt] = i > c0;
  }
  dfs(1);
  cout << dp[1][1] << endl;
}
signed main() {
  ios::sync_with_stdio(0);
  cin.tie(0);

  int T = 1;
  cin >> T;
  while (T--) {
    solve();
  }
}
/*

2
3 0
d/t
d/tt
m
3 1
d/t
d/tt
m
d/s

1
3 0
d/t
d/tt
m
 */