def p(a,b,c,d): return (a-c)**2+(b-d)**2
for _ in range(int(input())):
    a,b,c,d,e,f,g,h = map(int,input().split())
    print("Yes" if p(a,b,e,f)==p(c,d,g,h) and p(a,b,c,d)>p(e,f,g,h) else "No")