#include <iostream>
#include <vector>
#include <queue>
#include <fstream>

using namespace std;

struct muchie{
int y,c;
}aux;


vector <muchie> v[32000];
queue <int> q;

int n,m,t,d[32000];

void parc(int x,int y)
{
    int i,z;
    while(!q.empty())q.pop();
    for(i=1;i<=n;i++)
        d[i]=2000000000;
    d[x]=0;
    q.push(x);
    while(!q.empty())
    {
        z=q.front();
        for(i=0;i<v[z].size();i++)
        {
            if(d[v[z][i].y]>d[z]+v[z][i].c)
            {
                d[v[z][i].y]=d[z]+v[z][i].c;
                q.push(v[z][i].y);
//cout<<"_________ "<<z<<" "<<v[z][i].y<<" "<<d[i]<<endl;
            }

        }
        q.pop();
    }

  /*  cout<<x<<" "<<y<<endl;

    for(i=1;i<=n;i++)
        cout<<d[i]<<" ";
            cout<<endl;*/

    cout<<d[y]<<endl;

}

int main()
{
    int i,j,x,y;
ifstream f("date.in");
f>>n>>m;
for(i=1;i<=m;i++)
    {
        f>>x>>y;
        aux.y=y;
        aux.c=0;
        v[x].push_back(aux);
        aux.y=x;
        aux.c=1;
        v[y].push_back(aux);
    }
/*for(i=1;i<=n;i++)
{
    for(j=0;j<v[i].size();j++)
        cout<<i<<" "<<v[i][j].y<<" "<<v[i][j].c<<"   ";
    cout<<endl;
}*/
f>>t;
for(i=1;i<=t;i++)
{
    f>>x>>y;
    parc(x,y);
}
return 0;
}