#include <bits/stdc++.h>
using namespace std;
inline int rdi() {
  int d;
  scanf("%d", &d);
  return d;
}
inline char rdc() {
  scanf(" ");
  return getchar();
}
inline string rds() {
  string s;
  cin >> s;
  return s;
}
inline double rddb() {
  double d;
  scanf("%lf", &d);
  return d;
}
template <class T>
inline bool setmin(T& a, T b) {
  return a > b ? a = b, true : false;
}
template <class T>
inline bool setmax(T& a, T b) {
  return a < b ? a = b, true : false;
}
struct debugger {
  template <typename T>
  debugger& operator,(const T& x) {
    cerr << x << ",";
    return *this;
  }
} dbgr;
const int N = 131072, M = 128;
char s[N];
int n, c[3], cnt[N][3];
int Abs(int x) { return x < 0 ? -x : +x; }
int main() {
  scanf("%s", s + 1), n = strlen(s + 1);
  for (int i = (1); i <= (n); ++i)
    memcpy(cnt[i], cnt[i - 1], sizeof cnt[i]), ++cnt[i][s[i] - 'x'];
  for (int repp_b = (rdi()), repp = 0; repp < repp_b; ++repp) {
    int l = rdi(), r = rdi();
    for (int i = (0); i < (3); ++i) c[i] = cnt[r][i] - cnt[l - 1][i];
    int mx = *max_element(c, c + 3);
    int mn = *min_element(c, c + 3);
    puts(r - l + 1 < 3 || mx - mn <= 1 ? "YES" : "NO");
  }
  return 0;
}
