#include <stdio.h>

void solve()
{
    int n, m, arr[100][100];
    scanf("%d%d", &n, &m);

    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            scanf("%d", &arr[i][j]);
        }
    }
    int count1 = 0;
    int count2 = 0;
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            if (arr[i][j] == 0)
            {
                count1++;
            }
            else
            {
                count2++;
            }
        }
    }
    if (count1 > count2)
    {
        printf("YES\n");
    }
    else
    {
        printf("NO\n");
    }
}

int main()
{
    int i, t = 1;
    scanf("%d", &t);
    for (i = 0; i < t; i++)
        solve();
    return 0;
}