#include <bits/stdc++.h>   using namespace std;   char name[110][3000], text[110][3000];   int name_len[110], text_len[110];   bool found[110][110], dp[110][110];   int pre[110][110];   int chosen[110];   void variable_init() {     memset(found, 0, sizeof found);     memset(dp, 0, sizeof dp);   }   int main() {     int tcase, n, m;     scanf( %d , &tcase);     while (tcase--) {       variable_init();       scanf( %d , &n);       for (int i = 1; i <= n; i++) {         scanf( %s , name[i]);         name_len[i] = strlen(name[i]);       }       scanf( %d , &m);       gets(text[0]);       for (int i = 1; i <= m; i++) {         gets(text[i]);         text_len[i] = strlen(text[i]);         if (text[i][0] !=  ? ) {           for (int k = 1; k <= n; k++) {             bool ok = true;             if (text_len[i] < name_len[k]) ok = false;             for (int l = 0; l < name_len[k] && ok; l++) {               if (text[i][l] != name[k][l]) ok = false;             }             ok &=                 (name_len[k] == text_len[i] || (!isalpha(text[i][name_len[k]]) &&                                                 !isdigit(text[i][name_len[k]])));             if (ok) {               bool found_others = false;               int pre_choose;               if (i == 1) {                 found_others = true;                 pre_choose = -1;               }               for (int j = 1; j <= n; j++)                 if (j != k && dp[i - 1][j]) {                   found_others = true;                   pre_choose = j;                   break;                 }               dp[i][k] = found_others;               pre[i][k] = pre_choose;               break;             }           }           continue;         }         for (int j = 0; j < text_len[i]; j++) {           if (!isalpha(text[i][j]) && !isdigit(text[i][j])) {             for (int k = 1; k <= n; k++) {               bool ok = true;               if (text_len[i] - 1 - j < name_len[k]) ok = false;               for (int l = j + 1; l <= j + name_len[k] && ok; l++) {                 if (text[i][l] != name[k][l - (j + 1)]) ok = false;               }               ok &= (j + name_len[k] + 1 == text_len[i] ||                      (!isalpha(text[i][j + name_len[k] + 1]) &&                       !isdigit(text[i][j + name_len[k] + 1])));               if (ok) found[i][k] = true;             }           }         }         for (int j = 1; j <= n; j++) {           for (int k = 1; k <= n; k++) {             if (i == 1) {               if (!found[i][k]) {                 dp[i][k] = true;                 pre[i][k] = -1;               }             } else {               if (j != k && dp[i - 1][j] && !found[i][k]) {                 dp[i][k] = true;                 pre[i][k] = j;               }             }           }         }       }       bool least_one = false;       int last;       for (int i = 1; i <= n; i++) {         if (dp[m][i]) {           least_one = true;           last = i;         }       }       if (!least_one)         puts( Impossible );       else {         for (int i = m; i >= 1; i--) {           chosen[i] = last;           last = pre[i][last];         }         for (int i = 1; i <= m; i++) {           if (text[i][0] ==  ? ) {             printf( %s , name[chosen[i]]);             int pos;             for (int j = 1; j < text_len[i]; j++)               if (text[i][j] ==  : ) {                 pos = j;                 break;               }             puts(text[i] + pos);           } else {             puts(text[i]);           }         }       }     }     return 0;   }