#include<iostream>
#include<stdio.h>
 
int main()
{
    int n;
    double x[4], y[4];
    std::cin >> n;
    while( n-- ){
        for( int i = 0; i < 4; i++ ){
            std::cin >> x[i] >> y[i];
        }
         
        if( ( x[1] - x[0] ) * ( y[3] - y[2] ) == ( x[3] - x[2] ) * ( y[1] - y[0] ) ) puts("YES");
        else if( x[0] == x[1] && x[2] == x[3] ) puts("YES");
        else if( y[0] == y[1] && y[2] == y[3] ) puts("YES");
        else puts("NO");
    }
 
    return 0;
}