#include<cstdio>
using namespace std;
int solve(){
	int x,y,m,n;
	scanf("%d%d%d%d",&n,&m,&x,&y);
	if(x<=5 || y<=5)
		return 1;
	if(n-x<5)
		return 1;
	if(m-y<5)
		return 1;
	return 0;
}
int main(){
	freopen("chatnoir.in","r",stdin);
	freopen("chatnoir.out","w",stdout);
	int T;
	scanf("%d",&T);
	for(;T;--T){
		if(solve())
			printf("DA\n");
		else
			printf("NU\n");
	}
	fclose(stdin);
	fclose(stdout);
	return 0;
}