In a coordinate system,There are 3 chocolate which will be placed at three random position (x1,y1),(x2,y2) and (x3,y3).Ramesh loves Chocolates. Ramesh always moves along a straight line. your task is to find out whether he can have all the chocolates.

Input Format :-
The first line of the input contains an integer T denoting the number of test cases. Each of the next T lines contains coordinates in integer- x1 y1 x2 y2 and x3 y3.

Output Format :-
If Ramesh can get all chocolates then print "YES" otherwise "NO"(without quotes).

Constraints :-
1 ≤ T ≤ 100
-1000 ≤ x1,y1,x2,y2,x3,y3 ≤ 1000

SAMPLE INPUT
2
1 1 2 2 3 3
1 2 5 4 10 15

SAMPLE OUTPUT
YES
NO

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