#include <iostream>
#include <map>
using namespace std;
const int N=5e4+1;
int pre[N][26];
int main()
{
ios::sync_with_stdio(0);
cout.tie(0);
cin.tie(0);
string s;
cin>>s;
int n=s.size();
for(int i=0;i<n;i++)
{
for(int j=0;j<26;j++)
{
pre[i+1][j]=pre[i][j]+((s[i]-'a')==j);
}
}
int q;
cin>>q;
while(q--)
{
int a,b,c,d;
cin>>a>>b>>c>>d;
bool pos=1;
for(int j=0;j<26;j++)
{
if(pre[b][j]-pre[a-1][j] != pre[d][j]-pre[c-1][j])
{
pos=0;
}
}
cout<<(pos?"DA":"NE")<<endl;
}
}
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