#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

#define rd_init() char*rp=({char*mmap();mmap(0l,1l<<25,1,2,0,0ll);})
#define rd() ({int _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})

char wbuf[1<<25];

int main(){
	char*wp=wbuf;
	rd_init();
	int t=rd();
	while(t--){
		long x1=rd();
		long y1=rd();
		long x2=rd();
		long y2=rd();
		long X1=rd();
		long Y1=rd();
		long X2=rd();
		long Y2=rd();
		int yes=0;
		if(x1==X1&&y1==Y1&&x2==X2&&y2==Y2){
			yes=1;
		}else{
			long x=x1-x2;
			long y=y1-y2;
			long X=X1-X2;
			long Y=Y1-Y2;
			yes=x*x+y*y>X*X+Y*Y&&x*Y==y*X&&x*X+y*Y>0;
		}
		if(yes){
			*wp++='Y';
			*wp++='e';
			*wp++='s';
		}else{
			*wp++='N';
			*wp++='o';
		}
		*wp++='\n';
	}
	write(1,wbuf,wp-wbuf);
	_exit(0);
}