#include<fstream>
#include<algorithm>
#define min(a,b) (a>b) ? b:a
using namespace std;

int t,n,m,x,y;

int main()
{
  ifstream cin("chatnoir.in");
  ofstream cout("chatnoir.out");

  cin>>t;

  while(t--)
  {
     cin>>n>>m>>x>>y;
     if(x>n-x) x=n-x;
     if(y>m-y) y=m-y;
     x=min(x,y);
     if(x>4) cout<<"NU"<<'\n'
     else cout<<"DA"<<'\n';
  }

 return 0;
}