#include <stdio.h>

int Mi[1000005];

int main()
{
    int T;
    int n, maxn, mark;
    long long int sum;
    scanf("%d", &T);
    while(T--)
    {
        sum = 0;   maxn = 0;
        mark = 0;
        scanf("%d", &n);
        for(int i = 1; i<=n; i++)
            {
                scanf("%d", &Mi[i]);
                maxn = maxn > Mi[i] ? maxn : Mi[i];
            }
        if(n == 1 && maxn > 1)
        {
            printf("No\n");
            continue;
        }
        sum = 2*maxn;
        for(int i = 1; i<=n; i++)
        {
            sum = sum-Mi[i];
            if(sum <= 1)
            {
                mark = 1;
                break;
            }
        }
        if(mark)
            printf("Yes\n");
        else
            printf("No\n");
    }
    return 0;
}