ll@n,@q;
unionFind u('m',n+1,1);
rep(i,n){
	ll@p;
	if(p>=0)u(i+1,p);
}
rep(q){
	ll@a,@b;
//	wt(u(a)-u(b)?"No":"Yes");
	wt(if[u(a)-u(b),"No","Yes"]);
}