#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

#define rep(i, n) for (int i = 0; i < (n); i++)

int main(void){
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);

	int N, E, P; cin >> N >> E >> P;
    vector<vector<int>> graf(N);
    for (int i = 0; i < E; i++) {
        int a, b; cin >> a >> b;
        a--; b--;
        graf[a].push_back(b);
        graf[b].push_back(a);
    }
    vector<vector<int>> ps(P);
    vector<vector<int>> pnav(N);
    for (int i = 0; i < P; i++) {
        int M; cin >> M;
        for (int j = 0; j < M; j++) {
            int x; cin >> x; x--;
            ps[i].push_back(x);
            //pnav[x].push_back(i);
        }
    }
    vector<int> male_indexy, velke_indexy;
    for (int i = 0; i < P; i++) {
        if (ps[i].size() * ps[i].size() < 100000) male_indexy.push_back(i);
        else velke_indexy.push_back(i);
    }
    for (int i : male_indexy) for (int j : ps[i]) pnav[j].push_back(i);

    vector<vector<pair<int, int>>> hnap(P);
    
    unordered_set<ll> hrany;
    for (int i = 0; i < N; i++) for (int j : graf[i]) hrany.insert((ll)i*N + j);
    for (int p : male_indexy) for (int i = 0; i < ps[p].size(); i++) for (int j = 0; j < i; j++)
        if (hrany.find((ll)ps[p][i]*N + ps[p][j]) != hrany.end()) hnap[p].emplace_back(ps[p][i], ps[p][j]);

    vector<unordered_set<int>> ps2(P);
    for (int p : velke_indexy) for (int i : ps[p]) ps2[p].insert(i);
    for (int i = 0; i < N; i++) for (int j : graf[i]) if (j<i) for (int p : velke_indexy)
        if (ps2[p].find(i) != ps2[p].end() && ps2[p].find(j) != ps2[p].end()) hnap[p].emplace_back(i, j);

    for (int p = 0; p < P; p++) {
        //sort(ps[p].begin(), ps[p].end());
        unordered_map<int, int> mapa;
        for (int i = 0; i < ps[p].size(); i++) mapa[ps[p][i]] = i;
        int n = ps[p].size();
        vector<vector<int>> graf(n);
        for (pair<int, int> h : hnap[p]) {
            int a = mapa[h.first], b = mapa[h.second];
            graf[a].push_back(b);
            graf[b].push_back(a);
        }
        vector<char> visited(n); int ans = 0;
        for (int i = 0; i < n; i++) if (!visited[i]) {
            ans++;
            stack<int> s; s.push(i);
            while (!s.empty()) {
                int x = s.top(); s.pop();
                if (visited[x]) continue;
                visited[x] = true;
                for (int j : graf[x]) s.push(j);
            }
        }
        cout << ans << '\n';
    }
}