#include <iostream>
#include <stdio.h>
#include <string.h>
using namespace std;

int main() {
	int N;
	scanf("%d", &N);
	int adjNum[55] = {0};
	int adjList[55][55];
	int cs[55] = {0}, bxc[55];
	for(int i = 1; i <= N; i++) bxc[i] = (1<<26) - 1;
	for(int i = 1; i <= N; i++){
		char chs[30], xc[30];
		scanf("%s%s", chs, xc);
		if(chs[0] != '.'){
			int len = strlen(chs);
			for(int j = 0; j < len; j++){
				cs[i] += (1 << (chs[j]-'A'));
			}
		}
		if(xc[0] != '.'){
			int len = strlen(xc);
			for(int j = 0; j < len; j++){
				bxc[i] -= (1 << (xc[j]-'A'));
			}
		}
	}
	while(1){
		int I, J;
		scanf("%d%d", &I, &J);
		if(I == 0 && J == 0) break;
		adjList[I][adjNum[I]] = J;
		adjNum[I] ++;
	}
	int state[55] = {0};
	for(int i = 1; i <= N; i++){
		state[i] |= cs[i];
		for(int j = 1; j <= N-1; j++){
			for(int k = 1; k <= N; k++){
				if(state[k] == 0) continue;
				for(int l = 0; l < adjNum[k]; l++){
					int to = adjList[k][l];
					state[to] |= (state[k] & bxc[to]);
				}
			}
		}
	}
	for(int i = 1; i <= N; i++){
		printf(":");
		int st = state[i];
		for(int j = 0; j < 26; j++){
			if((st & (1<<j)) > 0){
				printf("%c", j+'A');
			}
		}
		printf(":\n");
	}
	return 0;
}