package v006;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.StringTokenizer;

public class TheNet_UVa627 {

static final int INF = 100000;

static int V , adjMat[][], p[][];

static ArrayList<Integer> out;

static void floyd()

{

p = new int[V][V];

for(int i = 0; i < V; i++)

for(int j = 0; j < V; j++)

p[i][j] = i;

for(int k = 0; k < V; k++)

for(int i = 0; i < V; i++)

for(int j = 0; j < V; j++)

if(adjMat[i][j] > adjMat[i][k] + adjMat[k][j])

{

adjMat[i][j] = adjMat[i][k] + adjMat[k][j];

p[i][j] = p[k][j];

}

}

static void print(int i, int j)

{

if(i != j) print(i, p[i][j]);

out.add(j);

}

public static void main(String[] args) throws IOException {

InputReader in = new InputReader(System.in);

StringBuilder sb = new StringBuilder();

while(in.ready())

{

V = in.nextInt();

adjMat = new int[V][V];

for(int i = 0; i < V; i++)

{

StringTokenizer st = new StringTokenizer(in.nextLine(),"-");

int u = Integer.parseInt(st.nextToken()) - 1;

Arrays.fill(adjMat[u], INF);

adjMat[u][u] = 0;

if(!st.hasMoreTokens())

continue;

st = new StringTokenizer(st.nextToken(),",");

while(st.hasMoreTokens())

{

int v = Integer.parseInt(st.nextToken()) - 1;

adjMat[u][v] = 1;

}

}

floyd();

sb.append("-----\n");

int m = in.nextInt();

while(m-->0)

{

int u = in.nextInt() - 1, v = in.nextInt() - 1;

if(adjMat[u][v] == INF)

sb.append("connection impossible\n");

else

{

out = new ArrayList<Integer>();

print(u,v);

for(int i = 0; i < out.size() - 1; i++)

sb.append(out.get(i)+1).append(" ");

sb.append(out.get(out.size()-1)+1).append("\n");

}

}

}

System.out.print(sb);

}

static class InputReader {

StringTokenizer st;

BufferedReader br;

public InputReader(InputStream s){ br = new BufferedReader(new InputStreamReader(s));}

public String next() throws IOException

{

while (st == null || !st.hasMoreTokens())

st = new StringTokenizer(br.readLine());

return st.nextToken();

}

public int nextInt() throws IOException {return Integer.parseInt(next());}

public String nextLine() throws IOException {st = null; return br.readLine();}

public boolean ready() throws IOException {return br.ready();}

}

}