#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
    int n,m,i,k=0;
    int sum=0;
    cin>>n;
    while (n--)
    {
        cin>>m;
        while (m--)
        {
            cin>>i;
            k=i>k?i:k;
            sum=sum+i;

        }
        sum=sum-k;
        if(sum+1>=k)
        cout<<"Yes"<<endl;
        else
        cout<<"No"<<endl;
        k=0;
        sum=0;
    }
return 0;
}