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#include <bits/stdc++.h>

using namespace std;
using ll = long long;
#define int ll
using PII = pair<int, int>;
template <typename T> using V = vector<T>;
template <typename T> using VV = vector<V<T>>;
template <typename T> using VVV = vector<VV<T>>;

#define FOR(i, a, n) for (ll i = (ll)a; i < (ll)n; ++i)
#define REP(i, n) FOR(i, 0, n)
#define ALL(x) x.begin(), x.end()
#define PB push_back

const ll INF = (1LL<<60);
const int MOD = 1000000007;

template <typename T> T &chmin(T &a, const T &b) { return a = min(a, b); }
template <typename T> T &chmax(T &a, const T &b) { return a = max(a, b); }
template <typename T> bool IN(T a, T b, T x) { return a<=x&&x<b; }
template<typename T> T ceil(T a, T b) { return a/b + !!(a%b); }
template<class S,class T>
ostream &operator <<(ostream& out,const pair<S,T>& a){
  out<<'('<<a.first<<','<<a.second<<')';
  return out;
}
template<class T>
ostream &operator <<(ostream& out,const vector<T>& a){
  out<<'[';
  REP(i, a.size()) {out<<a[i];if(i!=a.size()-1)out<<',';}
  out<<']';
  return out;
}

int dx[] = {0, 1, 0, -1}, dy[] = {1, 0, -1, 0};

class UnionFind {
public:
  const static int MAX_N = 100010;
  int par[MAX_N];
  int s[MAX_N];
  UnionFind() { init(); }
  UnionFind(int n) { init(n); }
  void init() { for(int i=0; i<MAX_N; ++i) par[i] = i, s[i] = 1; }
  void init(int n) { for(int i=0; i<n; ++i) par[i] = i, s[i] = 1; }
  int find(int x) {
    if(par[x] == x) return x;
    return par[x] = find(par[x]);
  }
  void unite(int x, int y) {
    x = find(x);
    y = find(y);
    if(x == y) return;
    if(s[x] < s[y]) par[x] = y, s[y] = s[x] + s[y];
    else par[y] = x, s[x] = s[x] + s[y];
  }
  bool same(int x, int y) { return find(x) == find(y); }
  int size(int x) { return s[find(x)]; }
};
UnionFind uf;

ll binpow(ll x, ll e, ll mo=MOD) {
  ll a = 1, p = x;
  while(e > 0) {
    if(e%2 == 0) {p = (p*p) % mo; e /= 2;}
    else {a = (a*p) % mo; e--;}
  }
  return a;
}

signed main(void)
{
  cin.tie(0);
  ios::sync_with_stdio(false);

  int n, m, x;
  cin >> n >> m >> x;
  VV<int> e(m, V<int>(3));
  REP(i, m) cin >> e[i][1] >> e[i][2] >> e[i][0], e[i][1]--, e[i][2]--;
  
  map<int, int> mp;
  sort(ALL(e));
  REP(i, m) {
    uf.init(n);
    uf.unite(e[i][1], e[i][2]);
    int ret = e[i][0];
    REP(j, m) {
      if(i==j) continue;
      if(!uf.same(e[j][1], e[j][2])) {
        uf.unite(e[j][1], e[j][2]);
        ret += e[j][0];
      }
    }
    mp[ret]++;
  }

  for(auto i=next(mp.begin()); i!=mp.end(); i++) {
    i->second += prev(i)->second;
  }

  auto f = [&](int x) {
    auto itr = mp.upper_bound(x);
    int c;
    if(itr == mp.begin()) c = 0;
    else itr--, c = itr->second;
    if(c == 0) return binpow(2, m);
    return binpow(2, m-c+1);
  };

  cout << (((f(x-1) - f(x)) % MOD) + MOD) % MOD << endl;

  return 0;
}