#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;
        string ans("No");
        if((x1 == X1) && (y1 == Y1) && (x2 == X2) && (y2 == Y2)) {
            ans = "Yes";
        }
        if((y1 == y2 && Y1 != Y2) || (x1 == x2 && X1 != X2)) {
        }else {
            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))) {
                    ans = "Yes";
                }
            }
        }
        cout << ans << endl;
    }
    return 0;
}