#include <bits/stdc++.h>

using namespace std;
#define int long long
#define pt pair<int,int>
#define x first
#define y second
__int128 one=1;
int dist(pt a,pt b)
{
    return (a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y);
}
int32_t main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int t;cin>>t;
    while(t--)
    {
        pt a,b,c,d;cin>>a.x>>a.y;cin>>b.x>>b.y;cin>>c.x>>c.y;cin>>d.x>>d.y;
        if((a.x-b.x)*one*(c.y-d.y)==(a.y-b.y)*one*(c.x-d.x) && dist(a,b)>dist(c,d) && (a.x-b.x)*(c.x-d.x)+(a.y-b.y)*(c.y-d.y)>0) {cout<<"Yes\n";}
        else {cout<<"No\n";}
    }
    return 0;
}