#include <iostream>
#include <fstream>
using namespace std;

ifstream in("chatnoir.in");
ofstream out("chatnoir.out");

int f(int n, int m, int i, int j)
{
    if(i<=5 || j<=5) return 1;
    if(n-i<5 || m-j<5) return 1;
    return 0;
}

int main()
{
    int t,a,b,c,d,i;
    in>>t;
    for(i=0; i<t; i++)
    {
        in>>a>>b>>c>>d;
        if(f(a,b,c,d)) out<<"DA\n";
        else out<<"NU\n";
    }
    return 0;
}