#include <bits/stdc++.h>
#define mod 1000000007
#define MOD 998244353
using namespace std;
int main()
{
	int t,n,a,flag = 0;
	cin >> t;
	string ans[t];
	for (int i = 0; i < t; i++)
	{
	    cin >> n;
	    for (int j = 0; j < n; j++) 
	    {
	        cin >> a;
	        if (a == 0)
	        {
	            ans[i] = "yes";
	            flag = 1;
	            break;
            }
        }
        if (!flag) ans[i] = "no";
    }
    for (int i = 0; i < 2; i++) cout << ans[i] << endl;
	return 0;
}