#include "bits/stdc++.h"
using namespace std;
using ll = long long;
const int inf = 1e9;
void solve() {
int n, m, k, q;
cin >> n >> m;
vector<vector<pair<int, int>>> g(n + 1);
for (int i = 0; i < m; i++) {
int u, v, w;
cin >> u >> v >> w;
g[u].emplace_back(v, w);
g[v].emplace_back(u, w);
}
vector<int> danger(n + 1, inf);
cin >> k;
for (int i = 0; i < k; i++) {
int root;
cin >> root;
vector<int> dist(n + 1, inf);
vector<bool> vis(n + 1);
dist[root] = 0;
priority_queue<pair<int, int>> pq; pq.emplace(0, root);
while (!pq.empty()) {
auto [d, u] = pq.top(); pq.pop();
if (vis[u]) continue;
d = -d;
danger[u] = min(danger[u], d);
vis[u] = true;
for (auto [v, w]: g[u]) {
if (dist[v] <= d + w) continue;
dist[v] = d + w;
pq.emplace(-dist[v], v);
}
}
}
cin >> q;
while (q--) {
int s, t;
cin >> s >> t;
vector<int> ans(n + 1);
vector<bool> vis(n + 1);
ans[s] = danger[s];
priority_queue<pair<int, int>> pq; pq.emplace(ans[s], s);
while (!pq.empty()) {
auto [d, u] = pq.top(); pq.pop();
if (vis[u]) continue;
vis[u] = true;
for (auto [v, w]: g[u]) {
if (ans[v] > min(ans[u], danger[v])) continue;
ans[v] = min(ans[u], danger[v]);
pq.emplace(ans[v], v);
}
}
cout << ans[t] << '\n';
}
}
int main() {
cin.tie(0)->sync_with_stdio(false);
#ifdef sunnatov
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int queries = 1;
// cin >> queries;
for (int test_case = 1; test_case <= queries; test_case++) {
#ifdef sunnatov
cout << "Test case: " << test_case << endl;
#endif
solve();
cout << '\n';
}
}
