include <stdio.h>

using namespace std;

int fa[100005] = {0};

inline void Build(int n) {

for (int i = 1; i <= n; i++) {
	fa[i] = i;
}

}

inline int Find(int x) {

if (fa[x] == x) {
	return x;
} else {
	return Find(fa[x]);
}

}

inline void Merge(int x, int y) {

if (Find(x) != Find(y)) {
	fa[Find(x)] = Find(y);
}

}

inline bool Check(int x, int y) {

if (Find(x) != Find(y)) {
	return false;
} else {
	return true;
}

}

int main() {

int n, m;
scanf("%d %d", &n, &m);
Build(n);
while (m--) {
	int a, b;
	scanf("%d %d", &a, &b);
	Merge(a, b);
}
int q;
scanf("%d", &q);
while (q--) {
	int c, d;
	scanf("%d %d", &c, &d);
	if (Check(c, d)) {
		printf("Yes\n");
	} else {
		printf("No\n");
	}
}
return 0;

}