#include<iostream>
using namespace std;
const int N = 20010;
int p[N];
int n,m; 
int find(int x)
{
    if(p[x]!=x) return p[x]=find(p[x]);
    else return p[x];
}
int main()
{
    ios::sync_with_stdio(false);cin.tie(0),cout.tie(0);
    cin>>n>>m;
    for(int i = 1;i<=n;i++)
    {
        p[i]=i;
    }
    while (m -- )
    {
        int a,b;
        cin>>a>>b;
        p[find(a)]=find(b);
    }
    int t;
    cin>>t;
    while(t--)
    {
        int a,b;
        cin>>a>>b;
        if(find(a)==find(b)) puts("Yes");
        else  puts("No");
    }
    return 0;
}