#include <bits/stdc++.h>
using namespace std;
 
int main() {
    int t;
    cin >> t;
 
    string target = "Timur";
    sort(target.begin(), target.end());
 
    while (t--) {
        int n;
        string s;
        cin >> n >> s;
 
        if (n != 5) {
            cout << "NO\n";
            continue;
        }
 
 
        sort(s.begin(), s.end());
 
        if (s == target)
            cout << "YES\n";
        else
            cout << "NO\n";
    }
 
    return 0;
}
 

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10
5
Timur
5
miurT
5
Trumi
5
mriTu
5
timur
4
Timr
6
Timuur
10
codeforces
10
TimurTimur
5
TIMUR