/* -*- coding: utf-8 -*-
 *
 * 2283.cc:  No.2283 Prohibit Three Consecutive - yukicoder
 */

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

/* constant */

const int MAX_N = 100000;

/* typedef */

/* global variables */

char s[MAX_N + 4];
bool dp[MAX_N + 1][4];

/* subroutines */

/* main */

int main() {
  int tn;
  scanf("%d", &tn);

  while (tn--) {
    int n;
    scanf("%d%s", &n, s);

    bool ok = false;

    for (int st = 0; ! ok && st < 4; st++) {
      int d0 = st >> 1, d1 = st & 1;
      if ((s[0] != '?' && s[0] - '0' != d0) ||
	  (s[1] != '?' && s[1] - '0' != d1)) continue;
	  
      for (int i = 0; i <= n; i++) fill(dp[i], dp[i] + 4, false);
      dp[2][st] = true;

      for (int i = 2; i < n; i++)
	for (int bits = 0; bits < 4; bits++)
	  if (dp[i][bits])
	    for (int di = 0; di < 2; di++)
	      if ((s[i] == '?' || s[i] - '0' == di) &&
		  ! (bits == 0 && di == 0) &&
		  ! (bits == 3 && di == 1))
		dp[i + 1][((bits << 1) | di) & 3] = true;

      ok =
	(dp[n][0] && d0 != 0) ||
	(dp[n][1] && st != 3) ||
	(dp[n][2] && st != 0) ||
	(dp[n][3] && d0 != 1);
    }

    if (ok) puts("Yes");
    else puts("No");
  }

  return 0;
}