#include <fstream>
using namespace std;
ifstream fi("chatnoir.in");
ofstream fo("chatnoir.out");
int main(void)
{
    int n,m,x,y,t;
    fi>>t;
    for (int i=1;i<=t;++i)
    {
        fi>>n>>m>>x>>y;
        bool ok=0;
        if (n-x<=4 || m-y<=4 || x<=4 || y<=4) ok=1;
        fo<<(ok ? "DA\n":"NU\n");
    }
    fo.close();
}