#include using namespace std; using ll = long long; struct point{ ll x, y; bool operator==(const point &a){ return (x == a.x) && (y == a.y); } }; point P[2]; point Q[2]; ll dist(point a, point b){ return (a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y); } bool heikou(){ point p = {P[0].x - P[1].x, P[0].y - P[1].y}; point q = {Q[0].x - Q[1].x, Q[0].y - Q[1].y}; if(p.x == 0 && q.x == 0)return p.y * q.y > 0; if(p.y == 0 && q.y == 0)return p.x * q.x > 0; return (p.x * q.y == p.y * q.x); } void solve(){ cin >> P[0].x >> P[0].y; cin >> P[1].x >> P[1].y; cin >> Q[0].x >> Q[0].y; cin >> Q[1].x >> Q[1].y; if(P[0] == Q[0] && P[1] == Q[1]){ cout << "Yes\n"; return; } bool f = (dist(P[0], P[1]) > dist(Q[0], Q[1])) && heikou(); cout << (f ? "Yes\n" : "No\n"); } int main(void){ ios::sync_with_stdio(false); cin.tie(nullptr); int t; cin >> t; while(t--)solve(); return 0; }