#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define X first
#define Y second
#define SZ(a) ((int)a.size())
#define ALL(v) v.begin(), v.end()
#define pb push_back

const int INF = 2e9;

struct Edge {
    int u, v, w;
    bool operator<(const Edge &e) const {
        return w < e.w;
    }
} edges[200005];

struct Basis {
    vector<int> basis;
    void insert(int x) {
        for (int i : basis)
            x = min(x, x ^ i);
        if (x > 0)
            basis.pb(x);
    }
    bool check(int x) {
        for (int i : basis) 
            x = min(x, x ^ i);
        return x == 0;
    }
    void Union(const Basis &b) {
        for (int i : b.basis)
            insert(i);
    }
} basis[200005];

vector<pii> G[200005];
vector<Basis> version[200005];
vector<int> timing[200005];
int depth[200005], boss[200005], sz[200005], up[200005];

int finds(int x) {
    while (x != boss[x]) x = boss[x];
    return x;
}

bool Union(int u, int v, int w, int type) {
    if (finds(u) == finds(v)) return false;
    if (type == 0) {
        G[u].pb(pii(v, w));
        G[v].pb(pii(u, w));
    }
    u = finds(u), v = finds(v);
    if (sz[u] > sz[v]) swap(u, v);
    boss[u] = v;
    up[u] = w;
    sz[v] += sz[v];
    if (type == 1) {
        version[v].pb(version[v].back());
        timing[v].pb(w);
        version[v].back().Union(version[u].back());
    }
    return true;
}

void dfs(int u, int f, int d) {
    depth[u] = d;
    for (auto [v, w] : G[u])
        if (v != f)
            dfs(v, u, d ^ w);
}

int main() {
    ios::sync_with_stdio(0), cin.tie(0);
    int n, m;
    cin >> n >> m;
    for (int i = 1; i <= m; ++i)
        cin >> edges[i].u >> edges[i].v >> edges[i].w;
    sort(edges + 1, edges + m + 1);

    iota(boss + 1, boss + n + 1, 1);
    fill_n(sz + 1, n, 1);
    for (int i = 1; i <= m; ++i)
        Union(edges[i].u, edges[i].v, edges[i].w, 0);

    for (int i = 1; i <= n; ++i)
        if (finds(i) == i)
            dfs(i, i, 0);

    iota(boss + 1, boss + n + 1, 1);
    fill_n(sz + 1, n, 1);
    fill_n(up + 1, n, INF);
    for (int i = 1; i <= n; ++i)
        version[i].pb(Basis()), timing[i].pb(-1); 
    for (int i = 1; i <= m; ++i) {
        if (!Union(edges[i].u, edges[i].v, edges[i].w, 1)) {
            int r = finds(edges[i].u);
            version[r].pb(version[r].back()), version[r].back().insert(depth[edges[i].u] ^ depth[edges[i].v] ^ edges[i].w);
            timing[r].pb(edges[i].w);
        }
    }

    int q;
    cin >> q;
    while (q--) {
        int u, v, w;
        cin >> u >> v >> w;

        if (finds(u) != finds(v)) {
            cout << "-1\n";
            continue;
        }

        int path = depth[u] ^ depth[v], lower = 0;
        while (u != v) {
            if (sz[u] > sz[v]) swap(u, v);
            lower = max(lower, up[u]);
            u = boss[u];
        }

        auto check = [&](int t) {
            if (t < lower) return false; 
            int cur = u;
            while (t >= up[cur]) cur = boss[cur];
            int p = upper_bound(ALL(timing[cur]), t) - timing[cur].begin() - 1;
            return version[cur][p].check(path ^ w);
        };

        int l = 1, r = m + 1;
        while (l < r) {
            int mid = (l + r) >> 1;
            if (check(edges[mid].w)) r = mid;
            else l = mid + 1;
        }
        if (l == m + 1) cout << "-1\n";
        else cout << edges[l].w << "\n";
    }
}