#include <cstdio>
#include <cstring>
using namespace std;

#define MAX 1000001

char arr[MAX];
int recordArr[MAX];

int main() {
    scanf("%s", arr);
    int n = 0; 
    for (int i = 1; i < int(strlen(arr)); ++i)
    {
        if (arr[i - 1] != arr[i]) recordArr[i] = ++n;
        else recordArr[i] = n;
    }
    int C;
    scanf("%d", &C);
    for (int a = 0; a < C; ++a)
    {
        int i, j;
        scanf("%d%d", &i, &j);
        if (recordArr[i] == recordArr[j]) printf("Yes\n");
        else printf("No\n");
    }
    return 0;
}