#include<iostream>
using namespace std;main(){double a,b,c,d,e,f,g,h,F,H;int n,z,w,j;for(cin>>n;cin>>a>>b>>c>>d>>n;cout<<z<<endl){pair<double,int> v[n];c-=a;d-=b;for(j=0;n-->0;sort(v,v+j)){cin>>e>>f>>g>>h>>z>>w;e-=a;f-=b;g-=a;h-=b;F=c*f-d*e;H=c*h-d*g;e=(F*c*g+F*d*h-H*c*e-H*d*f)/(F-H);if(F*H<0&&0<e&&e<c*c+d*d)v[j++]=make_pair(e,z^w);}for(w=z=0;++w<j;)z+=v[w-1].second^v[w].second;}}