#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i, a, n) for(int i = a; i < n; i++)
#define rrep(i, a, n) for(int i = a; i >= n; i--)
#define inr(l, x, r) (l <= x && x < r)
#define ll long long
#define ld long double

// using mint = modint1000000007;
using mint = modint998244353;
constexpr int IINF = 1001001001;
constexpr ll INF = 1e18;

template<class t,class u> void chmax(t&a,u b){if(a<b)a=b;}
template<class t,class u> void chmin(t&a,u b){if(b<a)a=b;}

int main(){
    int t; cin >> t;
    while(t--){
        int n; cin >> n;
        vector<vector<int>> g(n);
        rep(i, 0, n-1){
            int u, v; cin >> u >> v; u--, v--;
            g[u].push_back(v);
            g[v].push_back(u);
        }

        vector<ll> sz(n);
        rep(i, 0, n) sz[i] = g[i].size();
        mint ans = 0;
        rep(i, 0, n){
            rep(j, 0, (int)g[i].size()){
                int u = i, v = g[i][j];
                ans += (sz[u]-1)*(sz[v]-1);
            }
        }
        ans /= 2;
        cout << ans.val() << endl;
    }
    
    return 0;
}