#include <iostream>

#include <string.h>

#include <vector>

#define MAX_SIZE 401

using namespace std;

int n, k, s;

int found[MAX_SIZE][MAX_SIZE];

int main() {

ios_base::sync_with_stdio(false);

cin.tie();

cin >> n >> k;

int u, v;

while(k--) {

cin >> u >> v;

found[u][v] = -1;

}

for(int k=1; k<=n; k++) {

for(int i=1; i<=n; i++) {

for(int j=1; j<=n; j++) {

if(found[i][k] == found[k][j] && found[i][k] != 0) {

found[i][j] = found[i][k];

}

}

}

}

cin >> s;

for(int i=0; i<s; i++) {

ios_base::sync_with_stdio(false);

cin.tie(NULL); cout.tie(NULL);

cin >> u >> v;

if(found[u][v] == -1) cout << "-1\n";

else if(found[v][u] == -1) cout << "1\n";

else cout << "0\n";

}

return 0;

}