#include <fstream>

using namespace std;

int main()
{
    ifstream in("chatnoir.in");
    ofstream out("chatnoir.out");
    int i,n,m,t,x,y;
    in>>t;
    for(i=1; i<=t; i++)
    {
        in>>n>>m>>x>>y;
            if(x>=n-4 || y>=m-4|| x<=5|| y<=5)
                  out<<"DA\n";


            else
                out<<"NU\n";


    }
    return 0;
}