#include <bits/stdc++.h>
using namespace std;

int main() {
    int T;
    cin >> T;
    while(T--) {
        int x1, y1, x2, y2, X1, Y1, X2, Y2;
        cin >> x1 >> y1 >> x2 >> y2 >> X1 >> Y1 >> X2 >> Y2;
        if((x1 == X1) && (y1 == Y1) && (x2 == X2) && (y2 == Y2)) {
            cout << "Yes" << endl;
            continue;
        }
        if((y1 == y2 && Y1 != Y2) || (x1 == x2 && X1 != X2)) {
            cout << "No" << endl;
            continue;
        }
        if((long long)(y2-y1)*(long long)(X2-X1) == (long long)(Y2-Y1) * (long long)(x2-x1)) {
            if(((long long)(Y2-Y1) * (long long)(Y2-Y1) + (long long)(X2-X1) * (long long)(X2-X1)) < ((long long)(y2-y1) * (long long)(y2-y1) + (long long)(x2-x1) * (long long)(x2-x1))) {
                cout << "Yes" << endl;
            }else {
                cout << "No" << endl;
            }
        }else {
            cout << "No" << endl;
        }
    }
    return 0;
}