public class BoggleSolverDriver {
	public static void main(String[] args) {
		BoggleSolver solver = new BoggleSolver();
		Scanner scan = new Scanner(System.in);
		int numTestCases = scan.nextInt();
		for (int k = 0; k < numTestCases; k++) {
			int numWords = scan.nextInt();
			String[] dictionary = new String[numWords];
			for (int i = 0; i < numWords; i++) {
				dictionary[i] = scan.next();
			}
			int r = scan.nextInt();
			int c = scan.nextInt();

			Node[][] boggleBoard = new Node[r][c];
			for (int i = 0; i < r; i++) {
				for (int j = 0; j < c; j++) {
					boggleBoard[i] = new Node(scan.next());
				}
			}
			boggleSolver.printMatchingBoggleWords(dictionary, boggleBoard);
		}
		scan.close();
	}
}