1800A.cpp

#include <iostream>
using namespace std;

void solve()
{
    int n;
    cin >> n;
    string s;
    cin >> s;
    if((s[0]!='m' && s[0]!='M') || (s[n-1]!= 'w' && s[n-1]!='W')){
        cout << "NO" << endl;
        return;
    }
    for(int i=0; i<n-1; i++){
        if(s[i]!=s[i+1]){
            if((s[i]=='m' || s[i]=='M') && (s[i+1]=='e' || s[i+1]=='E')) continue;
            else if((s[i]=='e' || s[i]=='E') && (s[i+1]=='o' || s[i+1]=='O')) continue;
            else if((s[i]=='o' || s[i]=='O') && (s[i+1]=='w' || s[i+1]=='W')) continue;
            else if((s[i]=='m' || s[i]=='M') && (s[i+1]=='m' || s[i+1]=='M')) continue;
            else if((s[i]=='e' || s[i]=='E') && (s[i+1]=='e' || s[i+1]=='E')) continue;
            else if((s[i]=='o' || s[i]=='O') && (s[i+1]=='o' || s[i+1]=='O')) continue;
            else if((s[i]=='w' || s[i]=='W') && (s[i+1]=='w' || s[i+1]=='W')) continue;
            else{
                cout << "NO" << endl;
                return;
            }
        }
    }
    cout << "YES" << endl;
    return ;
}
int main(){
    int t;
    cin >> t;
    while(t--){
        solve();
    }
}