#include<fstream>

using namespace std;

ifstream fin( "chatnoir.in" );
ofstream fout( "chatnoir.out" );

int main() {
    int q, x, y, l, c;
    fin >> q;
    while ( q -- ) {
        fin >> l >> c >> x >> y;
        if ( x <= 5 || y <= 5 || l - x <= 4 || c - y <= 4 ) {
            fout << "DA\n";
        } else {
            fout << "NU\n";
        }
    }
    fin.close();
    fout.close();
    return 0;
}