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#include <iostream>
#include <vector>
#include <string>
using namespace std;

void readEmpty(int n){
	for (int i = 0; i < n - 1; i++){
		int a, b;
		cin >> a >> b;
	}
}

int main(){
	int t;
	cin >> t;
	while (t--){
		int n;
		cin >> n;
		string s, t;
		cin >> s;
		cin >> t;
		bool allBlack1 = true, allRed1 = true, allBlack2 = true, allRed2 = true;
//		cout << "les " << n << "\n";
		for (int i = 0; i < n; i++){
			if (s[i] == '0'){
				allRed1 = false;
			}
			if (s[i] == '1'){
				allBlack1 = false;
			}
			if (t[i] == '0'){
				allRed2 = false;
			}
			if (t[i] == '1'){
				allBlack2 = false;
			}
		}
		if ((allRed1) && (!allRed2)){
			cout << "NIE\n";
			readEmpty(n);
			continue;
		}
		if ((allRed1) && (allRed2)){
			cout << "TAK\n";
			readEmpty(n);
			continue;
		}
		if ((allBlack1) && (!allBlack2)){
			cout << "NIE\n";
			readEmpty(n);
			continue;
		}
		if ((allBlack1) && (allBlack2)){
			cout << "TAK\n";
			readEmpty(n);
			continue;
		}
		vector<int>* v = new vector<int> [n + 5];
		for (int i = 0; i < n - 1; i++){
			int a, b;
			cin >> a >> b;
			v[a].push_back(b);
			v[b].push_back(a);
		}
		bool ok = false;
		int p, q = -1;
		//cout << "bum " << n << "\n";
		for (int i = 1; i <= n; i++){
			if (v[i].size() > 2){
				ok = true;
		//		cout << "e " << v[i].size() << " " << n << "\n";
				break;
			}
			if (v[i].size() == 1){
				p = i;
			}
		}
		if (ok){
			bool non_di_color = false;
			for (int i = 1; i <= n; i++){
				for (int j = 0; j < v[i].size(); j++){
					if (t[i - 1] == t[v[i][j] - 1]){
						non_di_color = true;
						break;
					}
				}
			}
			if (non_di_color){
				cout << "TAK\n";
			}
			else {
				bool lastChance = true;
				for (int i = 1; i <= n; i++){
					if (s[i - 1] != t[i - 1]){
						lastChance = false;
						break;
					}
				}
				if (lastChance){
					cout << "TAK\n";
				}
				else {
					cout << "NIE\n";
				}
			}
			delete [] v;
			continue;
		}
		int noChanges1 = 0, noChanges2 = 0;
		int singles = 0;
		while (true){
//			cout << p << " ";
			if (v[p].size() == 1){
				singles++;
			}
			if (singles == 2){
				break;
			}
			int r;
			for (int i = 0; i < v[p].size(); i++){
				if (v[p][i] != q){
					r = v[p][i]; 
				}
			}
			if (s[p - 1] != s[r - 1]){
				noChanges1++;
			}
			if (t[p - 1] != t[r - 1]){
				noChanges2++;
			}
			q = p;
			p = r;
		}
		//cout << "\na " << noChanges1 << " " << noChanges2 << "\n";
		if (noChanges1 > noChanges2){
			cout << "TAK\n";
		}
		else if ((noChanges1 == noChanges2) && (s[p - 1] == t[p - 1])){
			cout << "TAK\n";
		}
		else {
			cout << "NIE\n";
		}
		delete [] v;
	}
}