// (◕ᴗ◕✿)

// #pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#define rep(i, n) for (ll i = 0; i < (n); i++)
#define srep(i, s, n) for (ll i = s; i < (n); i++)
#define len(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
using namespace std;
template<typename T> using vc = vector<T>;
template<typename T> using vv = vc<vc<T>>;
template<typename T> using vvv = vv<vc<T>>;
using vi = vc<int>;using vvi = vv<int>; using vvvi = vv<vi>;
using ll = long long;using vl = vc<ll>;using vvl = vv<ll>; using vvvl = vv<vl>;
using ld = long double; using vld = vc<ld>; using vvld = vc<vld>; using vvvld = vc<vvld>;
using uint = unsigned int;
using ull = unsigned long long;
const ld pi = acos(-1.0);
const int inf = 0x3f3f3f3f;
const ll INF = 0x3f3f3f3f3f3f3f3f;
// const ll mod = 1000000007;
const ll mod = 998244353;
inline bool inside(ll y, ll x, ll H, ll W) {return 0 <= (y) and (y) < (H) and 0 <= (x) and (x) < (W); }

#define debug(var) do { cerr << #var << " :\n"; view(var); } while(0)
template<typename T>void view(const T& e) {cerr << e;}
template<typename T1, typename T2>void view(const pair<T1, T2>& p) {cerr << "{" << p.first << ", " << p.second << "}";}
template<typename T>void view(const vc<T>& v) {for (const auto& e : v) {view(e);cerr << " ";} cerr << endl;}
template<typename T>void view(const vv<T>& vv) {for (const auto& v : vv) {view(v);} cerr << endl;}
template<typename T>void view(const set<T>& s) {for (const auto& e : s) {view(e);cerr << " ";} cerr << endl;}
template<typename T>void view(const multiset<T>& s) {for (const auto& e : s) {view(e);cerr << " ";} cerr << endl;}
template<typename T>void view(const unordered_set<T>& s) {for (const auto& e : s) {view(e);cerr << " ";} cerr << endl;}
template<typename T1, typename T2>void view(const map<T1, T2>& mp){for (const auto& e : mp) {view(e);cerr << " ";} cerr << endl;}

struct modint {
    int Mod = mod;
    int val;
    using mint = modint;
    modint() {};
    modint(ll v) {
        if (0 <= v && v < Mod) val = v;
        else{
            v %= Mod;
            if (v < 0) v += Mod;
            val = v;
        }
    }
    mint operator++(int){
        val++;
        if (val == Mod) val = 0;
        return *this;
    }
    mint operator--(int){
        if (val == 0) val = Mod;
        val--;
        return *this;
    }
    mint& operator+=(const mint& v){
        val += v.val;
        if (val >= Mod) val -= Mod;
        return *this;
    }
    mint& operator-=(const mint& v){
        val -= v.val;
        if (val < 0) val += Mod;
        return *this;
    }
    mint& operator*=(const mint& v){
        val = (int)(1ll * val * v.val % Mod);
        return *this;
    }
    modint inverse() const {
        int a = val, b = mod, u = 1, v = 0, t;
        while (b > 0) {
        t = a / b;
        swap(a -= t * b, b), swap(u -= t * v, v);
        }
        return modint(u);
    }
    mint pow(ll n) const {
        mint a = *this, ret = 1;
        while (n > 0){
            if (n & 1) ret *= a;
            a *= a;
            n >>= 1;
        }
        return ret;
    }
    mint& operator>>=(ll k){
        *this *= mint(2).pow(k).pow(Mod - 2);
        return *this;
    }
    mint& operator<<=(ll k){
        *this *= mint(2).pow(k);
        return *this;
}
    mint operator/=(const mint& v){
        *this *= v.inverse();
        return *this;
    }
    mint operator-() const { return mint(-val);}
    friend mint operator+(const mint& u, const mint& v){return mint(u) += v;}
    friend mint operator-(const mint& u, const mint& v){return mint(u) -= v;}
    friend mint operator*(const mint& u, const mint& v){return mint(u) *= v;}
    friend mint operator/(const mint& u, const mint& v){return mint(u) /= v;}
    friend bool operator==(const mint& u, const mint& v){return u.val == v.val;}
    friend bool operator!=(const mint& u, const mint& v){return u.val != v.val;}
    friend bool operator>(const mint& u, const mint& v){return u.val > v.val;}
    friend bool operator<(const mint& u, const mint& v){return u.val < v.val;}
    friend mint operator>>(mint& u, const ll k){return u >>= k;}
    friend mint operator<<(mint& u, const ll k){return u <<= k;}
    friend ostream& operator<<(ostream& stream, const mint& v){
        stream << v.val;
        return stream;
    }
};

using mint = modint;

void solve(){
    int N; cin >> N;
    vvi g(N);
    rep(i, N - 1){
        int u, v; cin >> u >> v; u--; v--;
        g[u].push_back(v);
        g[v].push_back(u);
    }
    mint ans = 0;
    rep(s, N){
        for (auto u : g[s]){
            mint x = len(g[u]) - 1;
            ans += x * (len(g[s]) - 1);
        }
    }
    cout << ans / 2 << endl;
}
int main(){
    int T; cin >> T;
    while (T--) solve();
}