/**
*   author:     roccoshi
*   created:    2021-08-07 13:54:25
*/
#pragma GCC diagnostic ignored "-Wsign-conversion"
#pragma GCC diagnostic ignored "-Wsign-compare"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
// #define endl '\n'
#define pii pair<int,int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second
const int pi = 3.1415927;
const int mod = 1e9 + 7;
const int inf = 0x3f3f3f3f; 
const int ninf = 0xc0c0c0c0;
const int N = 10000 + 5;
const int M = 200000 + 5;


int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int t; cin >> t;
    int a, b, c, d;
    while (t--) {
        cin >> a >> b >> c >> d;
        if (b < c) {
            cout << "no" << endl;
        } else if (a == 1) {
            if (b == c && c == d && b == d) {
                cout << "yes" << endl;
            } else {
                cout << "no" << endl;
            }
        } else {
            if ((a - 1) * c + b <= a * d && (a - 1) * b + c >= a * d) {
                cout << "yes" << endl;
            } else {
                cout << "no" << endl;
            }
        }
    }
    return 0;
}