/// Craciun Catalin (C)
#include <fstream>
using namespace std;
ifstream f("chatnoir.in");
ofstream g("chatnoir.out");

void verificare(short int n1, short int m1, short int x1, short int y1){

    if ((x1<=5)||(y1<=5)||(x1>n1-5)||(y1>m1-5))
        g<<"DA \n";
    else
        g<<"NU \n";
}

int main(){

    long t,i;
    short int x,y,m,n;

    f>>t;
    for (i=1;i<=t;i++){
        f>>n>>m>>x>>y;
        verificare(n,m,x,y);
    }
    f.close();
    g.close();

    return 0;
}