using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Threading;
using System.Text;
using System.Text.RegularExpressions;
using System.Diagnostics;
using static util;
using P = pair<int, int>;

class Program {
    static void Main(string[] args) {
        var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
        var solver = new Solver(sw);
        // var t = new Thread(solver.solve, 1 << 26); // 64 MB
        // t.Start();
        // t.Join();
        solver.solve();
        sw.Flush();
    }
}

class Solver {
    StreamWriter sw;
    Scan sc;
    void Prt(string a) => sw.WriteLine(a);
    void Prt<T>(IEnumerable<T> a) => Prt(string.Join(" ", a));
    void Prt(params object[] a) => Prt(string.Join(" ", a));
    public Solver(StreamWriter sw) {
        this.sw = sw;
        this.sc = new Scan();
    }

    public void solve() {
        int n, m;
        sc.Multi(out n, out m);
        long x = sc.Long;
        var edges = new pair<long, P>[m];
        for (int i = 0; i < m; i++)
        {
            int u, v, w;
            sc.Multi(out u, out v, out w);
            --u;
            --v;
            edges[i] = new pair<long, P>(w, new P(u, v));
        }
        Array.Sort(edges);
        var uf = new UnionFind(n);
        var edge = new List<pair<long, int>>[n];
        for (int i = 0; i < n; i++)
        {
            edge[i] = new List<pair<long, int>>();
        }
        long mst = 0;
        foreach (var item in edges)
        {
            if (uf.unite(item.v2.v1, item.v2.v2)) {
                mst += item.v1;
                edge[item.v2.v1].Add(new pair<long, int>(item.v1, item.v2.v2));
                edge[item.v2.v2].Add(new pair<long, int>(item.v1, item.v2.v1));
            }
        }
        if (x < mst) {
            Prt(0);
            return;
        }
        var lca = new LCATree<long>(edge, Math.Max, 0);
        if (mst == x) {
            int cnt = 0;
            for (int i = 0; i < m; i++)
            {
                long v = lca.lca(edges[i].v2.v1, edges[i].v2.v2).v1;
                if (edges[i].v1 == v) ++cnt;
            }
            Prt((MyMath.pow(2, cnt) + M - 2) % M * MyMath.pow(2, m - cnt) % M);
        }
        else {
            int c1 = 0, c2 = 0;
            for (int i = 0; i < m; i++)
            {
                long v = lca.lca(edges[i].v2.v1, edges[i].v2.v2).v1;
                v = mst + edges[i].v1 - v;
                if (v == x) {
                    ++c1;
                }
                else if (x < v) {
                    ++c2;
                }
            }
            Prt(2 * (MyMath.pow(2, c1) - 1) % M * MyMath.pow(2, c2) % M);
        }
    }
}

class pair<T, U> : IComparable<pair<T, U>> {
    public T v1;
    public U v2;
    public pair() : this(default(T), default(U)) {}
    public pair(T v1, U v2) { this.v1 = v1; this.v2 = v2; }
    public int CompareTo(pair<T, U> a) {
        int c = Comparer<T>.Default.Compare(v1, a.v1);
        return c != 0 ? c : Comparer<U>.Default.Compare(v2, a.v2);
    }
    public override string ToString() => v1 + " " + v2;
    public void Deconstruct(out T a, out U b) { a = v1; b = v2; }
}
static class util {
    public static readonly int M = 1000000007;
    // public static readonly int M = 998244353;
    public static readonly long LM = 1L << 60;
    public static readonly double eps = 1e-11;
    public static void DBG(string a) => Console.Error.WriteLine(a);
    public static void DBG<T>(IEnumerable<T> a) => DBG(string.Join(" ", a));
    public static void DBG(params object[] a) => DBG(string.Join(" ", a));
    public static void Assert(params bool[] conds) {
        if (conds.Any(x => !x)) throw new Exception();
    }
    public static pair<T, U> make_pair<T, U>(T v1, U v2) => new pair<T, U>(v1, v2);
    public static int CompareList<T>(IList<T> a, IList<T> b) where T : IComparable<T> {
        for (int i = 0; i < a.Count && i < b.Count; i++)
            if (a[i].CompareTo(b[i]) != 0) return a[i].CompareTo(b[i]);
        return a.Count.CompareTo(b.Count);
    }
    public static bool inside(int i, int j, int h, int w) => i >= 0 && i < h && j >= 0 && j < w;
    public static readonly int[] dd = { 0, 1, 0, -1 };
    // static readonly string dstring = "RDLU";
    public static IEnumerable<P> adjacents(int i, int j)
        => Enumerable.Range(0, dd.Length).Select(k => new P(i + dd[k], j + dd[k ^ 1]));
    public static IEnumerable<P> adjacents(int i, int j, int h, int w)
        => adjacents(i, j).Where(p => inside(p.v1, p.v2, h, w));
    public static IEnumerable<P> adjacents(this P p) => adjacents(p.v1, p.v2);
    public static IEnumerable<P> adjacents(this P p, int h, int w) => adjacents(p.v1, p.v2, h, w);
    public static IEnumerable<int> all_subset(this int p) {
        for (int i = 0; ; i = i - p & p) {
            yield return i;
            if (i == p) break;
        }
    }
    public static Dictionary<T, int> compress<T>(this IEnumerable<T> a)
        => a.Distinct().OrderBy(v => v).Select((v, i) => new { v, i }).ToDictionary(p => p.v, p => p.i);
    public static Dictionary<T, int> compress<T>(params IEnumerable<T>[] a) => compress(a.SelectMany(x => x));
    public static T[] inv<T>(this Dictionary<T, int> dic) {
        var res = new T[dic.Count];
        foreach (var item in dic) res[item.Value] = item.Key;
        return res;
    }
    public static void swap<T>(ref T a, ref T b) where T : struct { var t = a; a = b; b = t; }
    public static void swap<T>(this IList<T> a, int i, int j) where T : struct { var t = a[i]; a[i] = a[j]; a[j] = t; }
    public static T[] copy<T>(this IList<T> a) {
        var ret = new T[a.Count];
        for (int i = 0; i < a.Count; i++) ret[i] = a[i];
        return ret;
    }
}

class Scan {
    StreamReader sr;
    public Scan() { sr = new StreamReader(Console.OpenStandardInput()); }
    public Scan(string path) { sr = new StreamReader(path); }
    public int Int => int.Parse(Str);
    public long Long => long.Parse(Str);
    public double Double => double.Parse(Str);
    public string Str => sr.ReadLine().Trim();
    public pair<T, U> Pair<T, U>() {
        T a; U b;
        Multi(out a, out b);
        return new pair<T, U>(a, b);
    }
    public P P => Pair<int, int>();
    public int[] IntArr => StrArr.Select(int.Parse).ToArray();
    public long[] LongArr => StrArr.Select(long.Parse).ToArray();
    public double[] DoubleArr => StrArr.Select(double.Parse).ToArray();
    public string[] StrArr => Str.Split(new[]{' '}, StringSplitOptions.RemoveEmptyEntries);
    bool eq<T, U>() => typeof(T).Equals(typeof(U));
    T ct<T, U>(U a) => (T)Convert.ChangeType(a, typeof(T));
    T cv<T>(string s) => eq<T, int>()    ? ct<T, int>(int.Parse(s))
                       : eq<T, long>()   ? ct<T, long>(long.Parse(s))
                       : eq<T, double>() ? ct<T, double>(double.Parse(s))
                       : eq<T, char>()   ? ct<T, char>(s[0])
                                         : ct<T, string>(s);
    public void Multi<T>(out T a) => a = cv<T>(Str);
    public void Multi<T, U>(out T a, out U b) {
        var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]);
    }
    public void Multi<T, U, V>(out T a, out U b, out V c) {
        var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]); c = cv<V>(ar[2]);
    }
    public void Multi<T, U, V, W>(out T a, out U b, out V c, out W d) {
        var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]); c = cv<V>(ar[2]); d = cv<W>(ar[3]);
    }
    public void Multi<T, U, V, W, X>(out T a, out U b, out V c, out W d, out X e) {
        var ar = StrArr; a = cv<T>(ar[0]); b = cv<U>(ar[1]); c = cv<V>(ar[2]); d = cv<W>(ar[3]); e = cv<X>(ar[4]);
    }
}

class LCATree<T> {
    int m;
    int[][] parents;
    T[][] values;
    Func<T, T, T> func;
    T identity;
    int[] depth;

    public LCATree(List<pair<T, int>>[] g, Func<T, T, T> func, T identity, int root = 0) {
        int n = g.Length;
        parents = new int[n][];
        values = new T[n][];
        depth = new int[n];
        this.func = func;
        this.identity = identity;
        m = 1;
        while ((1 << m - 1) < n) ++m;
        for (int i = 0; i < n; i++) {
            parents[i] = new int[m];
            values[i] = new T[m];
            depth[i] = -1;
            for (int j = 0; j < m; j++) {
                parents[i][j] = -1;
                values[i][j] = identity;
            }
        }
        depth[root] = 0;
        var q = new Queue<int>();
        q.Enqueue(root);
        while (q.Count > 0) {
            var p = q.Dequeue();
            foreach (var item in g[p]) {
                if (depth[item.v2] == -1) {
                    depth[item.v2] = depth[p] + 1;
                    parents[item.v2][0] = p;
                    values[item.v2][0] = item.v1;
                    for (int i = 1; i < m && parents[item.v2][i - 1] != -1; i++) {
                        parents[item.v2][i] = parents[parents[item.v2][i - 1]][i - 1];
                        values[item.v2][i] = func(values[item.v2][i - 1], values[parents[item.v2][i - 1]][i - 1]);
                    }
                    q.Enqueue(item.v2);
                }
            }
        }
    }
    T climb(ref int p, int cnt) {
        T val = identity;
        for (int i = m - 1; i >= 0 ; i--) {
            if (((cnt >> i) & 1) == 1) {
                val = func(val, values[p][i]);
                p = parents[p][i];
            }
        }
        return val;
    }
    public pair<T, int> lca(int p, int q) {
        T val = identity;
        if (depth[p] > depth[q]) val = climb(ref p, depth[p] - depth[q]);
        if (depth[p] < depth[q]) val = climb(ref q, depth[q] - depth[p]);
        if (p == q) return new pair<T, int>(val, p);

        for (int i = m - 1; i >= 0 ; i--) {
            if (parents[p][i] != parents[q][i]) {
                val = func(val, values[p][i]);
                val = func(val, values[q][i]);
                p = parents[p][i];
                q = parents[q][i];
            }
        }
        {
            val = func(val, values[p][0]);
            val = func(val, values[q][0]);
            p = parents[p][0];
            q = parents[q][0];
        }
        return new pair<T, int>(val, p);
    }
}
class UnionFind {
    int num;
    int[] par, sz, rank;
    public UnionFind(int n) {
        num = n;
        par = new int[n];
        sz = new int[n];
        rank = new int[n];
        for (int i = 0; i < n; ++i) {
            par[i] = i;
            sz[i] = 1;
            rank[i] = 0;
        }
    }
    int find(int x) => par[x] == x ? x : (par[x] = find(par[x]));
    public bool same(int x, int y) => find(x) == find(y);
    public int unionsize(int x) => sz[find(x)];
    public int unioncount => num;
    public bool unite(int x, int y) {
        x = find(x);
        y = find(y);
        if (x == y) return false;
        --num;
        if (rank[x] < rank[y]) {
            par[x] = y;
            sz[y] += sz[x];
        }
        else {
            par[y] = x;
            sz[x] += sz[y];
            if (rank[x] == rank[y]) ++rank[x];
        }
        return true;
    }
    public bool ispar(int x) => x == find(x);
    public int getpar(int x) => find(x);
}

static class MyMath {
    public static long Mod = util.M;
    // public static long Mod = 1000000007;
    public static bool isprime(long a) {
        if (a < 2) return false;
        for (long i = 2; i * i <= a; i++) if (a % i == 0) return false;
        return true;
    }
    public static bool[] sieve(int n) {
        var p = new bool[n + 1];
        for (int i = 2; i <= n; i++) p[i] = true;
        for (int i = 2; i * i <= n; i++) if (p[i]) for (int j = i * i; j <= n; j += i) p[j] = false;
        return p;
    }
    public static int[] sieve2(int n) {
        var p = new int[n + 1];
        for (int i = 2; i <= n; i++) p[i] = i;
        for (int i = 2; i * i <= n; i++) {
            if (p[i] == i)
                for (int j = i * i; j <= n; j += i)
                    p[j] = Math.Min(p[j], i);
        }
        return p;
    }
    public static bool[] segmentSieve(long l, long r) {
        int sqn = (int)Math.Sqrt(r + 9);
        var ps = getprimes(sqn);
        return segmentSieve(l, r,ps);
    }
    public static bool[] segmentSieve(long l, long r, List<int> ps) {
        var sieve = new bool[r - l + 1];
        for (long i = l; i <= r; i++) sieve[i - l] = true;
        foreach (long p in ps) {
            if (p * p > r) break;
            for (long i = p >= l ? p * p : (l + p - 1) / p * p; i <= r; i += p) sieve[i - l] = false;
        }
        return sieve;
    }
    public static List<int> getprimes(int n) {
        var prs = new List<int>();
        var p = sieve(n);
        for (int i = 2; i <= n; i++) if (p[i]) prs.Add(i);
        return prs;
    }
    public static long pow(long a, long b, long mod) {
        a %= mod;
        if (b < 0) Console.Error.WriteLine($"power number is negative ({a}^{b}).");
        if (b <= 0) return 1;
        var t = pow(a, b / 2, mod);
        if ((b & 1) == 0) return t * t % mod;
        return t * t % mod * a % mod;
    }
    public static long pow(long a, long b) => pow(a, b, Mod);
    public static long inv(long a) => pow(a, Mod - 2);
    public static long gcd(long a, long b) {
        while (b > 0) {
            var t = a % b;
            a = b;
            b = t;
        }
        return a;
    }
    // a x + b y = gcd(a, b)
    public static long extgcd(long a, long b, out long x, out long y) {
        long g = a; x = 1; y = 0;
        if (b > 0) { g = extgcd(b, a % b, out y, out x); y -= a / b * x; }
        return g;
    }

    // return (r, m): x = r (mod. m)
    // return (0, -1) if no answer
    public static pair<long, long> chineserem(IList<long> b, IList<long> m) {
        long r = 0, M = 1;
        for (int i = 0; i < b.Count; ++i) {
            long p, q;
            long d = extgcd(M, m[i], out p, out q); // p is inv of M/d (mod. m[i]/d)
            if ((b[i] - r) % d != 0) return new pair<long, long>(0, -1);
            long tmp = (b[i] - r) / d * p % (m[i]/d);
            r += M * tmp;
            M *= m[i]/d;
        }
        return new pair<long, long>((r % M + M) % M, M);
    }

    // return k: x^k = y (mod. mod) O(sqrt(mod))
    public static long modlog(long x, long y, long mod) {
        if (y == 1) return 0;
        long H = (long)Math.Sqrt(mod) + 1;
        var baby = new Dictionary<long, long>();
        for (long b = 0, xby = y; b < H; b++, xby = (xby * x) % mod) {
            if (!baby.ContainsKey(xby))
                baby.Add(xby, b);
            else
                baby[xby] = b;
        }

        long xH = 1;
        for (int i = 0; i < H; ++i) xH = xH * x % mod;
        for (long a = 1, xaH = xH; a <= H; a++, xaH = (xaH * xH) % mod)
            if (baby.ContainsKey(xaH))
                return a * H - baby[xaH];

        return -1;
    }
    public static long lcm(long a, long b) => a / gcd(a, b) * b;

    static long[] facts, invs;
    public static void setfacts(int n) {
        facts = new long[n + 1];
        facts[0] = 1;
        for (int i = 1; i <= n; i++) facts[i] = facts[i - 1] * i % Mod;
        invs = new long[n + 1];
        invs[n] = inv(facts[n]);
        for (int i = n; i > 0 ; i--) invs[i - 1] = invs[i] * i % Mod;
    }
    public static long fact(long n) {
        if (n < 0) return 0;
        if (facts != null && facts.Length > n) return facts[n];
        long numer = 1;
        for (long i = 1; i <= n; i++) numer = numer * (i % Mod) % Mod;
        return numer;
    }
    public static long perm(long n, long r) {
        if (n < 0 || r < 0 || r > n) return 0;
        if (facts != null && facts.Length > n) return facts[n] * invs[n - r] % Mod;
        long numer = 1;
        for (long i = 0; i < r; i++) numer = numer * ((n - i) % Mod) % Mod;
        return numer;
    }
    public static long comb(long n, long r) {
        if (n < 0 || r < 0 || r > n) return 0;
        if (facts != null && facts.Length > n) return facts[n] * invs[r] % Mod * invs[n - r] % Mod;
        if (n - r < r) r = n - r;
        long numer = 1, denom = 1;
        for (long i = 0; i < r; i++) {
            numer = numer * ((n - i) % Mod) % Mod;
            denom = denom * ((i + 1) % Mod) % Mod;
        }
        return numer * inv(denom) % Mod;
    }
    public static long multi_choose(long n, long r) => comb(n + r - 1, r);
    public static long[][] getcombs(int n) {
        var ret = new long[n + 1][];
        for (int i = 0; i <= n; i++) {
            ret[i] = new long[i + 1];
            ret[i][0] = ret[i][i] = 1;
            for (int j = 1; j < i; j++) ret[i][j] = (ret[i - 1][j - 1] + ret[i - 1][j]) % Mod;
        }
        return ret;
    }
    // nC0, nC2, ..., nCn
    public static long[] getcomb(int n) {
        var ret = new long[n + 1];
        ret[0] = 1;
        for (int i = 0; i < n; i++) ret[i + 1] = ret[i] * (n - i) % Mod * inv(i + 1) % Mod;
        return ret;
    }

    public static class ModMatrix {
        public static long[][] E(int n) {
            var ret = new long[n][];
            for (int i = 0; i < n; i++) { ret[i] = new long[n]; ret[i][i] = 1; }
            return ret;
        }
        public static long[][] pow(long[][] A, long n) {
            if (n == 0) return E(A.Length);
            var t = pow(A, n / 2);
            if ((n & 1) == 0) return mul(t, t);
            return mul(mul(t, t), A);
        }
        public static long dot(long[] x, long[] y) {
            int n = x.Length;
            long ret = 0;
            for (int i = 0; i < n; i++) ret = (ret + x[i] * y[i]) % Mod;
            return ret;
        }
        public static long[][] trans(long[][] A) {
            int n = A[0].Length, m = A.Length;
            var ret = new long[n][];
            for (int i = 0; i < n; i++) { ret[i] = new long[m]; for (int j = 0; j < m; j++) ret[i][j] = A[j][i]; }
            return ret;
        }
        public static long[] mul(long a, long[] x) {
            int n = x.Length;
            var ret = new long[n];
            for (int i = 0; i < n; i++) ret[i] = a * x[i] % Mod;
            return ret;
        }
        public static long[] mul(long[][] A, long[] x) {
            int n = A.Length;
            var ret = new long[n];
            for (int i = 0; i < n; i++) ret[i] = dot(x, A[i]);
            return ret;
        }
        public static long[][] mul(long a, long[][] A) {
            int n = A.Length;
            var ret = new long[n][];
            for (int i = 0; i < n; i++) ret[i] = mul(a, A[i]);
            return ret;
        }
        public static long[][] mul(long[][] A, long[][] B) {
            int n = A.Length;
            var Bt = trans(B);
            var ret = new long[n][];
            for (int i = 0; i < n; i++) ret[i] = mul(Bt, A[i]);
            return ret;
        }
    }
}


Measured memory_bytes: 19744