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//#pragma GCC target("sse4,tune=native")
//#pragma GCC optimize("O3")
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <numeric>
#include <cstring>
#include <ctime>
#include <cstdlib>
#include <set>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <cmath>
#include <bitset>
#include <cassert>
#include <queue>
#include <deque>
#include <cassert>
#include <iomanip>      
#define pb push_back
#define x first
#define y second
#define mp make_pair
#define files(FILENAME) read(FILENAME); write(FILENAME)
#define read(FILENAME) freopen((FILENAME + ".in").c_str(), "r", stdin)
#define write(FILENAME) freopen((FILENAME + ".out").c_str(), "w", stdout)
using namespace std;
  
template<typename T1, typename T2>inline void chkmin(T1 &x, T2 y) { if (x > y) x = y; }
template<typename T1, typename T2>inline void chkmax(T1 &x, T2 y) { if (x < y) x = y; } 
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const pair<T, U> &_p) { _out << _p.first << ' ' << _p.second; return _out; }
template<typename T, typename U> inline istream &operator>> (istream &_in, pair<T, U> &_p) { _in >> _p.first >> _p.second; return _in; }
template<typename T> inline ostream &operator<< (ostream &_out, const vector<T> &_v) { if (_v.empty()) { return _out; } _out << _v.front(); for (auto _it = ++_v.begin(); _it != _v.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline istream &operator>> (istream &_in, vector<T> &_v) { for (auto &_i : _v) { _in >> _i; } return _in; }
template<typename T> inline ostream &operator<< (ostream &_out, const set<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const multiset<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const unordered_set<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const unordered_multiset<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const map<T, U> &_m) { if (_m.empty()) { return _out; } _out << '(' << _m.begin()->first << ": " << _m.begin()->second << ')'; for (auto _it = ++_m.begin(); _it != _m.end(); ++_it) { _out << ", (" << _it->first << ": " << _it->second << ')'; } return _out; }
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const unordered_map<T, U> &_m) { if (_m.empty()) { return _out; } _out << '(' << _m.begin()->first << ": " << _m.begin()->second << ')'; for (auto _it = ++_m.begin(); _it != _m.end(); ++_it) { _out << ", (" << _it->first << ": " << _it->second << ')'; } return _out; }
  
typedef long long base;
typedef pair<int, int> point;

const string FILENAME = "input";

const int p = 1e9 + 7, MAXN = 2001;

int sum(int a, int b) {
	a += b;
	return a >= p ? a - p : a;
}

int mul(long long a, int b) {
	return a * b % p;
}

int powx(int a, int b) {
	int ans = 1;
	while (b) {
		if (b & 1) ans = mul(ans, a);
		a = mul(a, a);
		b >>= 1;
	}
	return ans;
}

int n, m;
int ans = 0;
long long curw, x;
int a[MAXN], b[MAXN], w[MAXN];
vector<int> edge;
vector<int> good, bad; 
int dsu[MAXN], s[MAXN];

void init() {
	for (int i = 0; i < n; ++i) {
		dsu[i] = i;
		s[i] = 1;
	}
}

int get(int i) {
	if (dsu[i] == i) return i;
	return dsu[i] = get(dsu[i]);
}

void merge(int i, int j) {
	i = get(i), j = get(j);
	if (i == j) return;
	if (s[i] < s[j]) swap(i, j);
	s[i] += s[j];
	dsu[j] = i;
}

bool cmp(int i, int j) {
	return w[i] < w[j];
}



int main() {
	srand(time(0));
	ios::sync_with_stdio(false);
	cin >> n >> m >> x;
	for (int i = 0; i < m; ++i) {
		cin >> a[i] >> b[i] >> w[i];
		--a[i], --b[i];
		edge.pb(i);
	}
	sort(edge.begin(), edge.end(), cmp);
	int L = 0;
	init();
	while (L < m) {
		int R = L;
		while (R < m && w[edge[L]] == w[edge[R]]) {
			++R;
		}
		for (int i = L; i < R; ++i) {
			if (get(a[edge[i]]) != get(b[edge[i]])) {
				good.pb(edge[i]);
			} else {
				bad.pb(edge[i]);
			}
		}
		for (int i = L; i < R; ++i) {
			if (get(a[edge[i]]) != get(b[edge[i]])) {
				merge(a[edge[i]], b[edge[i]]);
				curw += w[edge[i]];
			}
		}
		L = R;
	}
	if (s[get(0)] != n) {
		cout << 0 << endl;
		return 0;
	}
	if (curw == x) {
		ans = sum(powx(2, m), p - powx(2, m - good.size() + 1));
	} else {
		vector<long long> ans;
		int cnt = 0;
		for (int i : bad) {
			init();
			long long curw = w[i];
			merge(a[i], b[i]);
			for (auto j : good) {
				if (get(a[j]) != get(b[j])) {
					merge(a[j], b[j]);
					curw += w[j];
				}
			}
			ans.pb(curw);
		}
		sort(ans.begin(), ans.end());
		for (int i = 0; i < ans.size(); ++i) {
			if (ans[i] == x) {
				::ans = sum(::ans, powx(2, m - good.size() - i));
			}
		} 
	}
	cout << ans << endl;
}




Measured memory_bytes: 384