#include <bits/stdc++.h>

#define maxn 1000005

using namespace std;

int n, k;
int a[maxn];
int b[maxn];

int m;
int s[maxn];

vector<pair<int, int> > g[maxn];

void add(int u, int v, int w) {
//	cout<<"ADd:"<<u<<" "<<v<<" "<<w<<endl;
	g[u].push_back({v, w});
//	g[v].push_back({u, w});
}

int f[maxn];
int res[maxn];

queue<int> q;

int main() {
	int T;
	scanf("%d", &T);
	while (T--) {
		scanf("%d%d", &n, &k);
		for (int i = 1; i <= n; i++) f[i] = k + 1;
		for (int i = 1; i <= k; i++) scanf("%d%d", &a[i], &b[i]);
		scanf("%d", &m);
		for (int i = 1; i <= m; i++) {
			int x;
			scanf("%d", &x);
			s[x] = 1;
		}
		for (int i = 1; i <= k; i++) {
			if (s[b[i]]) add(a[i], b[i], i);
		}
		for (int i = 1; i <= n; i++) if (!s[i]) q.push(i);
		while (!q.empty()) {
			int now = q.front(); q.pop();
			for (auto p : g[now]) {
				int v = p.first, w = p.second;
//				cout<<now<<" "<<f[now]<<" "<<w<<" "<<f[v]<<endl;
				if (f[now] > w && (f[v] < w || f[v] == k + 1)) {
					f[v] = w;
					q.push(v);
				}
			}
		}
		bool flg = 1;
		for (int i = 1; i <= n; i++) {
			if (s[i]) {
//				cout<<f[i]<<"@"<<endl;
				if (f[i] <= k) res[f[i]] = 1;
				else flg = 0;
			}
		}
		if (!flg) {
			puts("NIE");
			for (int i = 1; i <= n; i++) res[i] = f[i] = s[i] = 0, g[i].clear();
			continue;
		}
		puts("TAK");
		for (int i = 1; i <= k; i++) putchar(res[i] ? 'T' : 'N');
		puts("");
		for (int i = 1; i <= n; i++) res[i] = f[i] = s[i] = 0, g[i].clear();
	}
	return 0;
}