ll@t;
rep(t){
	ll@x,@y,@x2,@y2,@X,@Y,@X2,@Y2;
	x-=x2;
	y-=y2;
	X-=X2;
	Y-=Y2;
	wt(x*x+y*y>X*X+Y*Y&&x*Y==y*X&&x*X+y*Y>0?"Yes":"No");
}