#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 1000010;
int a[N];
signed main() {
    int T;
    cin >> T;
    while (T--) {
        int n, sum, mx;
        cin >> n;
        sum = 0, mx = 0;
        for (int j = 0; j < n; j++) {
            cin >> a[j];
            sum += a[j];
            mx = mx < a[j] ? a[j] : mx;
        }
        if ((sum - mx) >= (mx - 1))
            puts("Yes");
        else
            puts("No");
    }
}