from decimal import *

def solve(a,b,c,d,e,f):
    sa=a-c
    sb=b-d
    ta=e-c
    tb=f-d
    # if there are any x>0 which makes s*t>0, it is answer.
    # (sa*x+sb)*(ta*x+tb)=Ax^2+Bx+C>0
    A=sa*ta
    B=sa*tb+sb*ta
    C=sb*tb
    if A<Decimal(0):
        A*=-1
        B*=-1
        C*=-1
    if A>Decimal(0):
        # x=inf then f>0.OK
        return True
    elif A==Decimal(0):
        # f=Bx+C,C>0 or B>0 then OK.
        return C>Decimal(0) or B>Decimal(0)
    else:
        if B*B<4*A*C:
            return False
        # we can find two answers(suppose it's p and q).
        # if [p,q] contains positive number, is's OK.
        # => q=(-B+sqrt(B**2 - 4AC))/(2A)>0
        return (-B+(B*B-4*A*C).sqrt())/(2*A)>Decimal(0)

n=int(input())
for i in range(n):
    dat=list(map(Decimal,input().split()))
    if solve(dat[3],dat[0],dat[4],dat[1],dat[5],dat[2]):
        print("YES")
    else:
        print("NO")