#include <bits/stdc++.h>
using namespace std;
using ll = long long;

void solve(){
    ll a, b, c, d;
    cin >> a >> b >> c >> d;
    if(a == 0){
        cout << "No\n";
        return;
    }
    // 3ax^2+2bx+c=0
    ll D = b * b - 3 * a * c;
    cout << (D > 0 ? "Yes" : "No") << '\n';
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int T;
    cin >> T;
    while(T--) solve();
}