#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("00")
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef pair<int, int> pii;
ll time() {return chrono::system_clock().now().time_since_epoch().count();}
mt19937 rnd(time());
const int inf = 1e9;
const ll inf64 = 1e18;
#define ft first
#define fin(x) ifstream cin("x.in");
#define fout(x) ofstream cout("x.out");
#define sd second
#define pb push_back
#define sz(x) (int)x.size()
const ll MD = ll(1e18);
void mult(ll& x, ll y)
{
if (x > MD)
x -= MD;
x *= y;
}
void solve()
{
int a, b, c, d;
cin >> a >> b >> c >> d;
ll fst = 1, scd = 1;
for (int i = a; i <= b; i++)
mult(fst, i);
for (int i = c; i <= d; i++)
mult(scd, i);
if (scd % fst == 0)
cout << "DA\n";
else
cout << "NE\n";
}
int main()
{
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#ifdef _LOCAL_
system("color 2");
#endif // _LOCAL_
int t;
cin >> t;
while (t--)
solve();
}
