1 #include <iostream>
 2 #include <cstring>
 3 #include <algorithm>
 4 #include <cstdio>
 5 
 6 using namespace std;
 7 
 8 int main()
 9 {
10     int t,n;
11     scanf("%d", &t);
12     while(t--)
13     {
14         scanf("%d", &n);
15         int a;
16         long long sum = 0;
17         int MaxValue = 0;
18         for(int i = 1; i <= n; i++)
19         {
20             scanf("%d", &a);
21             sum += a;
22             MaxValue = max(MaxValue, a);
23         }
24         sum -= MaxValue;
25         if(sum >= MaxValue - 1)
26             printf("Yes\n");
27         else
28             printf("No\n");
29 
30     }
31 
32     return 0;
33 }