I,R,O=input,range,print
J=lambda:map(int,I().split())
def G(a,b,c,d):
	return a*d-b*c
for  t in R(int(I())):
	x,y,z,w,X,Y,Z,W=J()
	if [x,y]==[X,Y]:b=[z,w]==[Z,W]or G(x-z,y-w,x-Z,y-W)!=0
	elif [z,w]==[Z,W]:b=G(x-z,y-w,X-z,Y-w)!=0
	else:b= [x-z,y-w]==[X-Z,Y-W]or G(x-z,y-w,X-Z,Y-W)!=0
	O("YNeos"[b::2])