#include <bits/stdc++.h>
#define IOS ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define re register
using namespace std;
typedef long long ll;
int fth[1000010], n, m, q, x, y, tx, ty;
int fnd(int t)
{
	return (fth[t]==t?t:fth[t]=fnd(fth[t]));
}
int main()
{
	IOS;
	cin>>n>>m;
	for(int i=0; i<=n; i++) fth[i]=i;
	for(int i=0; i<m; i++)
	{
		cin>>x>>y;
		tx=fnd(x), ty=fnd(y);
		if(tx!=ty) fth[ty]=tx;
	}
	cin>>q;
	while(q--)
	{
		cin>>x>>y;
		cout<<(fnd(x)==fnd(y)?"Yes\n":"No\n");
	}
	return 0;
}