#include <iostream>
using namespace std;

void rezolvare()
{
	int m,n,y,x,r1,r2,r3,r4;
	int min1=2000000000;
	cin >> m >> n >> y >> x;
	r1=m-y+1;
	r2=n-x+1;
	r3=m-r1+1;
	r4=n-r2+1;
    min1=min(r1,r2);
    min1=min(min1,r3);
    min1=min(min1,r4);
    if(min1>=6)
    	cout<<"NU\n";
    else
    	cout<<"DA\n";
}

int  main(int argc, char const *argv[])
{
	freopen("chatnoir.in","r",stdin);
	freopen("chatnoir.out","w",stdout);
	int numar;
	cin>>numar;
	for(int contor=0;contor<numar;contor++)
	{
		 rezolvare();
	}
	
	return 0;
}