# include<bits/stdc++.h>
# define int long long
using namespace std;
int sum[100005];
string s;
signed main()
{
	int n,len,l1,l2,r1,r2;
	cin>>s;
	len=s.size();
	for(int i=0;i<len;i++) sum[i+1]=sum[i]+(s[i]-'a');
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>l1>>r1>>l2>>r2;
		if(r1-l1!=r2-l2)
		{
			printf("NE\n");
			continue;	
		}
		if(sum[r1]-sum[l1-1]==sum[r2]-sum[l2-1]) printf("DA\n");
		else printf("NE\n");
	}
	return 0;
}