#include <stdio.h>

int main () {
  int n = 0;
  char s[4] = "";
  
  int res = 0;
  
  int acc = 0;
  
  res = scanf("%d", &n);
  for (int i = 0; i < n; i++) {
    res = scanf("%s", s);
    if ((acc <= 0 && s[0] == 'Y') || (acc > 0 && s[0] == 'N')) {
      printf("Yes\n");
    } else {
      printf("No\n");
    }
    if (s[0] == 'N') {
      acc = 1-acc;
    }
  }
  
  return 0;
}