//Make CSP great again
//Vengeance
#include <bits/stdc++.h>
#define TASK "TESTCODE"
#define Log2(x) 31 - __builtin_clz(x)
using namespace std;
const int N = 1e5;
priority_queue< pair<int, int>, deque<pair<int, int> > , greater<pair<int, int> > > PQ;
vector<pair<int, int> > Adj[N + 1];
int n, m, d[N + 1], id[N + 1], res[N + 1], lab[N + 1], q;
map<int, int> dp[N + 1];
void read()
{
cin >> n >> m;
for (int i = 1; i <= m; ++ i)
{
int u, v, w;
cin >> u >> v >> w;
Adj[u].push_back({v, w});
Adj[v].push_back({u, w});
}
memset(d, 0x3f, sizeof(d));
memset(lab, -1, sizeof(lab));
int k;
cin >> k;
for (int i = 1; i <= k; ++ i)
{
int u;
cin >> u;
d[u] = 0;
PQ.push({0, u});
}
cin >> q;
for (int i = 1; i <= q; ++ i)
{
int u, v;
cin >> u >> v;
dp[u][i] = 1;
dp[v][i] = 1;
}
}
int FindSet(int u)
{
return lab[u] < 0 ? u : lab[u] = FindSet(lab[u]);
}
void Unite(int r, int s, int w)
{
r = FindSet(r);
s = FindSet(s);
if (r == s)
{
return ;
}
if (lab[r] < lab[s])
{
swap(r, s);
}
lab[r] += lab[s];
lab[s] = r;
if (dp[s].size() < dp[r].size())
{
swap(dp[r], dp[s]);
}
for (auto p : dp[s])
{
if (dp[r][p.first] == 1)
{
res[p.first] = w;
dp[r].erase(p.first);
}
else
{
++dp[r][p.first];
}
}
dp[s].clear();
}
void Dijkstra()
{
while(!PQ.empty())
{
pair<int, int> p = PQ.top();
PQ.pop();
if (d[p.second] != p.first)
{
continue;
}
int u = p.second;
for (auto p : Adj[u])
{
int v = p.first, w = p.second;
if (d[v] > d[u] + w)
{
d[v] = d[u] + w;
PQ.push({d[v], v});
}
}
}
}
void solve()
{
Dijkstra();
iota(id + 1, id + n + 1, 1);
sort(id + 1, id + n + 1, [&](const int & x, const int & y)
{
return d[x] < d[y];
});
for (int i = n; i >= 1; -- i)
{
int u = id[i];
for (auto p : Adj[u])
{
int v = p.first;
if (d[v] >= d[u])
{
Unite(u, v, d[u]);
}
}
}
for (int i = 1; i <= q; ++ i)
{
cout << res[i] << '\n';
}
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
if (fopen(TASK".INP", "r"))
{
freopen(TASK".INP", "r", stdin);
//freopen(TASK".OUT", "w", stdout);
}
int t = 1;
bool typetest = false;
if (typetest)
{
cin >> t;
}
for (int __ = 1; __ <= t; ++ __)
{
//cout << "Case " << __ << ": ";
read();
solve();
}
}
