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

int t,n,m,x,y;
bool u;

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

  cin>>t;

  while(t--)
  {
     cin>>n>>m>>x>>y; u=0;
     if(5>n-x) u=1; if(5>m-y) u=1;
     if(x-1<5) u=1; if(5>y-1) u=1;
     if(!u) cout<<"NU"<<'\n';
     else cout<<"DA"<<'\n';
  }

 return 0;
}