var f1,f2:text;
a:array[1..4] of integer;
t,i:longint;
n,m,x,y,min,j:integer;

Procedure Citire;
 begin
  assign(f1,'chatnoir.in');
  reset(f1);
  readln(f1,t);
  close(f1);
 end;

Procedure RezolvaAfis;
 begin
  assign(f2,'chatnoir.out');
  rewrite(f2);
  for i:=1 to t do
      begin
 	readln(f1,n,m,x,y);
 	a[1]:=x-1;
 	a[2]:=y-1;
 	a[3]:=n-x;
 	a[4]:=m-y;
 	min:=a[1];
 	for j:=2 to 4 do
  	 if a[j]<min then min:=a[j];
 	if min<=4 then writeln(f2,'DA') else writeln(f2,'NU');
      end;
   close(f2);
 end;


begin
 Citire;
 RezolvaAfis;
end.