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//#pragma GCC optimize("Ofast")
//#pragma GCC optimize ("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#pragma warning(disable:4786)
#pragma warning(disable:4996)
#include <random>
#include <chrono>
#include <ctime>
#include<list>
#include <numeric>
#include<bitset>
#include<iostream>
#include<cstdio>
#include<algorithm>
#include<vector>
#include<set>
#include<map>
#include<functional>
#include<string>
#include<cstring>
#include<cstdlib>
#include<queue>
#include<utility>
#include<fstream>
#include<sstream>
#include<cmath>
#include<stack>
#include<assert.h>
#include<unordered_map>
#include<unordered_set>
#include <array>
#include <complex>
#include<iomanip>
using namespace std;

#define MEM(a, b) memset(a, (b), sizeof(a))
#define CLR(a) memset(a, 0, sizeof(a))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define ABS(X) ( (X) > 0 ? (X) : ( -(X) ) )
#define S(X) ( (X) * (X) )
#define SZ(V) (int )V.size()
#define FORN(i, n) for(int i = 0; i < n; i++)
#define FORAB(i, a, b) for(int i = a; i <= b; i++)
#define ALL(V) V.begin(), V.end()
#define IN(A, B, C)  ((B) <= (A) && (A) <= (C))
#define AIN(A, B, C) assert(IN(A, B, C))

typedef long long int LL;
//typedef __int128 LLL;
typedef long long LLL;

typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;
typedef pair<LL, int> PLI;
typedef pair<double, double> PDD;
typedef vector<int> VI;
typedef vector<LL> VL;
typedef vector<PLL> VPL;
typedef vector<PII> VP;
typedef vector<double> VD;
typedef vector<vector<int>> VVI;
typedef vector<string> VS;
typedef long double ld;
typedef unsigned long long ULL;

//#define MAXN 1000
//#define MAXN2 MAXN*MAXN
#define MAXN 100

//const LL MOD[2] = { 87420317, 1000000007 };
//const LL MOD = 1000000007;
const LL MOD = 998244353;
//const LL MOD = 547892069;
//const LL INF = 2000000000000000001LL; //2e18 + 1

int n;
char source[100005];
char destination[100005];
VI adj[100005];
int vis[100005];

void solve(int ks) {
	scanf("%d", &n);
	FORAB(i, 1, n) {
		adj[i].clear();
		vis[i] = 0;
	}
	scanf("%s %s", source + 1, destination + 1);

	int slack = 0;
	FORN(i, n - 1) {
		int u, v;
		scanf("%d %d", &u, &v);
		adj[u].push_back(v);
		adj[v].push_back(u);
		slack |= (destination[u] == destination[v]);
	}

	int sDiff = 0, dDiff = 0;
	FORAB(i, 2, n) sDiff |= (source[i - 1] != source[i]);
	FORAB(i, 2, n) dDiff |= (destination[i - 1] != destination[i]);
	if (!sDiff && !dDiff) {
		printf("%s\n", source[1] == destination[1] ? "TAK" : "NIE");
		return;
	}
	else if (!sDiff && dDiff) {
		printf("NIE\n");
		return;
	}
	else if (sDiff && !dDiff) {
		printf("TAK\n");
		return;
	}

	int way3 = 0;
	FORAB(i, 1, n) if (SZ(adj[i]) > 2) way3 = 1;
	if (way3) {
		if (slack) printf("TAK\n");
		else if (strcmp(source + 1, destination + 1) == 0) printf("TAK\n");
		else printf("NIE\n");
		return;
	}

	int w = -1;
	FORAB(i, 1, n) if (SZ(adj[i]) == 1) { w = i; break; }
	VI V;
	queue<int> Q;
	Q.push(w);
	vis[w] = 1;
	while (!Q.empty()) {
		int u = Q.front();
		Q.pop();
		V.push_back(u);
		for (int v : adj[u]) {
			if (vis[v]) continue;
			vis[v] = 1;
			Q.push(v);
		}
	}

	auto Calc = [&](char* s) -> PII {
		int st = s[V[0]] - '0';
		int change = 0;
		int last = s[V[0]] - '0';
		for (int i = 1; i < n; i++) {
			if (last != s[V[i]] - '0') {
				change++;
			}
			last = s[V[i]] - '0';
		}
		return { st, change };
	};
	PII u = Calc(source);
	PII v = Calc(destination);

	if (u.first == v.first) {
		if (u.second >= v.second) printf("TAK\n");
		else printf("NIE\n");
	}
	else {
		if (u.second - 1 >= v.second) printf("TAK\n");
		else printf("NIE\n");
	}
}

void gen() {
}

int main()
{
	double start_time = clock();
#ifdef LOCAL
	freopen("C:\\Home\\Contests\\F\\sample.in", "r", stdin);
	//freopen("C:\\Home\\Contests\\F\\0.out", "w", stdout);
#endif

	gen();

	if (1) {
		int T;
		scanf("%d", &T);
		//AIN(T, 1, 10);
		for (int ks = 1; ks <= T; ks++) {
			solve(ks);
			//if (ks % 1 == 0) fprintf(stderr, "%d done\n", ks);
		}
	}
	else {
		solve(1);
	}

	double end_time = clock();
	fprintf(stderr, "Time = %lf\n", (end_time - start_time) / CLOCKS_PER_SEC);
	return 0;
}