#include <bits/stdc++.h>

using namespace std;

#define FOR(a, b, c) for(int a = (b); a < (c); a++)
#define SZ(a) (int)((a).size())
#define SIZE(a) (int)((a).size())
#define ALL(a) (a).begin(), (a).end()
using ll = long long;
#define LL long long
#define PB push_back

const int N = 1e5 + 7;

vector<int> graf[N];
bitset<N> act, vis;

void dfs(int u) {
    vis[u] = 1;
    for(auto& v : graf[u]) {
        if(not vis[v] and act[v]) {
            dfs(v);
        }
    }
}

int main() {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n, m, p;
    cin >> n >> m >> p;
    while(m--) {
        int a, b;
        cin >> a >> b;
        a--, b--;
        graf[a].PB(b);
        graf[b].PB(a);
    }

    while(p--) {
        int k; cin >> k;
        vector<int> x(k);
        for(auto& i : x) {
            cin >> i;
            i--;
            act[i] = 1;
        }

        int res = 0;

        for(auto& i : x) {
            if(not vis[i]) {
                dfs(i);
                res++;
            }
        }

        for(auto& i : x) {
            act[i] = 0;
            vis[i] = 0;
        }

        cout << res << "\n";
    }
}