#include <bits/stdc++.h>
using namespace std;

void solve(){
    int n;
    cin >> n;
    string s;
    cin >> s;
    transform(s.begin(), s.end(), s.begin(), [] (char c) {
        return tolower(c);
    });
    s.erase(unique(s.begin(), s.end()), s.end());
    cout << (s == "meow" ? "YES" : "NO") << "\n";
}

int main(){
    int t;
    cin >> t;
    while(t--) solve();
}

#include <bits/stdc++.h>
using namespace std;
const int N = 26;

void solve(){
    int n, k;
    cin >> n >> k;
    string s;
    cin >> s;
    vector<int>big(N, 0), small(N, 0);
    for(auto &i : s){
        if('A' <= i && 'Z' >= i) big[i - 'A']++;
        else small[i - 'a']++;
    }
    int answer = 0;
    for(int i = 0; i < N; i++){
        int pairs = min(small[i], big[i]);
        answer += pairs;
        small[i] -=pairs; big[i] -= pairs;
        int add = min(k, max(small[i], big[i]) / 2);
        k -= add; answer += add;
    }
    cout << answer << endl;
}
int main(){
    int t;
    cin >> t;
    while(t--) solve();
    return 0;
}

def solve():
    n = int(input())
    s = [int(x) for x in input().split()]
    ans = 0
    buffs = [0] * n
    for e in s:
        if e > 0:
            buffs += [e]
            j = len(buffs) - 1
            while buffs[j] < buffs[j - 1]:
                buffs[j], buffs[j - 1] = buffs[j - 1], buffs[j]
                j -= 1
        else:
            ans += buffs.pop()
    print(ans)


t = int(input())
for _ in range(t):
    solve()

from queue import PriorityQueue


def solve():
    n = int(input())
    s = [int(x) for x in input().split()]
    ans = 0
    buffs = PriorityQueue()
    for e in s:
        if e > 0:
            buffs.put(-e)
        elif not buffs.empty():
            ans -= buffs.get()
    print(ans)


t = int(input())
for _ in range(t):
    solve()

#include <iostream>
#include <vector>
#include <queue>
#include <map>
#include <set>

using namespace std;

void solve() {
    int n;
    cin >> n;
    string s;
    cin >> s;
    int res = n - 1;
    for (int i = 1; i + 1 < n; ++i) {
        if (s[i - 1] == s[i + 1]) {
            res--;
        }
    }
    cout << res << '\n';
}

int main(int argc, char* argv[]) {
    int t;
    cin >> t;
    for (int i = 0; i < t; ++i) {
        solve();
    }
}

#include <bits/stdc++.h>

using namespace std;

#define sz(v) (int)v.size()
#define all(v) v.begin(),v.end()
#define eb emplace_back


void slow_solve(int n, int k, string s, string t) {
    set<string> was;

    queue<string> q;
    q.push(s);
    was.insert(s);

    auto add = [&](string& s, int i, int j) {
        if (i >= 0 && i < j && j < n) {
            swap(s[i], s[j]);
            if (!was.count(s)) {
                was.insert(s);
                q.push(s);
            }
            swap(s[i], s[j]);
        }

    };

    while (!q.empty()) {
        s = q.front(); q.pop();
        for (int i = 0; i < n; ++i) {
            add(s, i, i+k);
            add(s, i, i+k+1);
            add(s, i-k, i);
            add(s, i-k-1, i);
        }
    }
    cout << (was.count(t) ? "Yes" : "No") << '\n';
}

void solve() {
    int n,k; cin >> n >> k;
    string s; cin >> s;
    string t; cin >> t;

    if (n <= 5) {
        slow_solve(n, k, s, t);
        return;
    }
    map<char, int> cnt;
    for (char c : s) {
        cnt[c]++;
    }

    for (char c : t) {
        cnt[c]--;
    }

    bool ok = true;
    for (auto [c, x] : cnt) {
        ok &= x == 0;
    }
    cout << (ok ? "Yes" : "No") << '\n';
}

int main() {
    int t;
    cin >> t;

    while (t--) {
        solve();
    }
}

#include <bits/stdc++.h>

using namespace std;

#define sz(v) (int)v.size()
#define all(v) v.begin(),v.end()
#define eb emplace_back

void solve() {
    int n, k; cin >> n >> k;
    string s; cin >> s;
    string t; cin >> t;
    vector<int> cnt(26, 0);

    bool ok = true;
    for (int i = 0; i < n; ++i) {
        if (i >= k || i+k < n){
            cnt[s[i] - 'a']++;
            cnt[t[i] - 'a']--;
        } else {
            ok &= s[i] == t[i];
        }
    }

    cout << (ok && count(all(cnt), 0) == 26 ? "YES" : "NO") << '\n';
}

int main() {
    int t;
    cin >> t;

    while (t--) {
        solve();
    }
}

#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx2,avx,fma,bmi2")

#include <bits/stdc++.h>
#include <immintrin.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;

#define endl '\n'
//#define int long long
#define all(arr) arr.begin(), arr.end()
#define multitest() int _gorilla_silverback; cin >> _gorilla_silverback; while (_gorilla_silverback --> 0)
#define pikachu push_back
#define ls(id) (id << 1 | 1)
#define rs(id) ((id << 1) + 2)
#define sqr(x) ((x) * (x))
#define dlg(x) (31 - __builtin_clz(x))
#define ulg(x) (32 - __builtin_clz(x))

typedef pair<int, int> ipair;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> treap;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int MAXN = 200200;
const int L = 26;

int n;
string srr[MAXN];
int arr[MAXN], brr[MAXN], crr[MAXN];

void build() {
	for (int i = 0; i < n; ++i) {
		for (char c: srr[i]) {
			arr[i] ^= (1 << (c - 'a'));
			brr[i] |= (1 << (c - 'a'));
		}
	}
}

long long calc(int c) {
	int k = 0;
	for (int i = 0; i < n; ++i)
		if (brr[i] >> c & 1 ^ 1) crr[k++] = arr[i];
	sort(crr, crr + k);
	int mask = -1 & ((1 << L) - 1) ^ (1 << c);
	long long ans = 0;
	for (int i = 0; i < k; ++i) {
		auto itl = lower_bound(crr, crr + k, crr[i] ^ mask);
		auto itr = upper_bound(crr, crr + k, crr[i] ^ mask);
		ans += itr - itl;
	}
	return ans >> 1LL;
}

long long solve() {
	long long ans = 0;
	for (int c = 0; c < L; ++c)
		ans += calc(c);
	return ans;
}

signed main() {
	ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
	cin >> n;
	for (int i = 0; i < n; ++i)
		cin >> srr[i];
	build();
	cout << solve() << endl;
}

#include <bits/stdc++.h>

#define int long long
#define pb emplace_back
#define mp make_pair
#define x first
#define y second
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()

typedef long double ld;
typedef long long ll;

using namespace std;

mt19937 rnd(time(nullptr));

const int inf = 2e18;
const ll M = 1e9;
const ld pi = atan2(0, -1);
const ld eps = 1e-6;

int last;
map<vector<int>, int> eq;
map<int, bool> symmetrical;

int dfs(int v, int p, vector<vector<int>> &sl){
    vector<int> children;
    for(int u: sl[v]){
        if(u == p) continue;
        children.emplace_back(dfs(u, v, sl));
    }
    sort(all(children));
    if(!eq.count(children)){
        map<int, int> cnt;
        for(int e: children){
            cnt[e]++;
        }
        int odd = 0, bad = 0;
        for(auto e: cnt){
            if(e.y & 1){
                odd++;
                bad += !symmetrical[e.x];
            }
        }
        eq[children] = last;
        symmetrical[last] = odd < 2 && bad == 0;
        last++;
    }
    return eq[children];
}

void solve(int tc){
    int n;
    cin >> n;
    eq.clear();
    symmetrical.clear();
    eq[vector<int>(0)] = 0;
    symmetrical[0] = true;
    last = 1;
    vector<vector<int>> sl(n);
    for(int i = 1; i < n; ++i){
        int u, v;
        cin >> u >> v;
        sl[--u].emplace_back(--v);
        sl[v].emplace_back(u);
    }
    cout << (symmetrical[dfs(0, 0, sl)]? "YES" : "NO");
}

bool multi = true;

signed main() {
    int t = 1;
    if (multi)cin >> t;
    for (int i = 1; i <= t; ++i) {
        solve(i);
        cout << "\n";
    }
    return 0;
}