#include <bits/stdc++.h>   using namespace std;   void solve();   signed main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int64_t t;     cin >> t;     while (t--) solve();     return 0;   }   vector<vector<int64_t>> to;   vector<bool> bobCan, parcouru;   vector<int64_t> pId;   int64_t nbPar;   int64_t da, db, goal;   void dfsBob(int64_t n, int64_t dist) {     if (bobCan[n]) return;     bobCan[n] = true;     goal++;     if (dist == 0) return;     for (int64_t &i : to[n]) dfsBob(i, dist - 1);   }   int64_t dfs2(int64_t n, int64_t dist, int64_t id) {     if (pId[n] == id) return 0;     pId[n] = id;     int64_t score = 0;     if (bobCan[n]) score = 1;     if (dist == 0) return score;     for (int64_t &i : to[n]) score += dfs2(i, dist - 1, id);     return score;   }   bool dfs1(int64_t n, int64_t dist) {     if (parcouru[n]) return false;     parcouru[n] = true;     if (dfs2(n, da, nbPar++) == goal) return true;     if (dist == 0) return false;     for (int64_t &i : to[n])       if (dfs1(i, dist - 1)) return true;     return false;   }   bool recherche(int64_t n, int64_t dist, int64_t m) {     if (parcouru[n]) return false;     parcouru[n] = true;     if (n == m) return true;     if (dist == 0) return false;     for (int64_t &i : to[n])       if (recherche(i, dist - 1, m)) return true;     return false;   }   void solve() {     int64_t n, a, b;     cin >> n >> a >> b >> da >> db;     to = vector<vector<int64_t>>(n + 1);     bobCan = parcouru = vector<bool>(n + 1);     for (int64_t i = 0; i < n - 1; i++) {       pair<int64_t, int64_t> input;       cin >> input.first >> input.second;       to[input.first].push_back(input.second);       to[input.second].push_back(input.first);     }     if (db <= 2 * da) {       cout <<  Alice n ;       return;     }     if (recherche(a, da, b)) {       cout <<  Alice n ;       return;     }     parcouru = vector<bool>(n + 1);     goal = 0;     dfsBob(b, db);     parcouru = vector<bool>(n + 1);     pId = vector<int64_t>(n + 1);     nbPar = 1;     if (dfs1(n, da)) {       cout <<  Alice n ;       return;     }     {       cout <<  Bob n ;       return;     }     return;   }   