#include <iostream>
#include <string>
#include <cstring>
#include <vector>
#include <algorithm>
#include <tuple>
#include <queue>
#include <set>
#include <cstdio>
#include <climits>
#include <cmath>
#include <array>
#include <functional>
#include <sstream>
#include <list>
#include <set>
const int MOD=1000000007;
const int INF=1000000000;
using namespace std;
typedef long long ll;
typedef vector<int> vi;
const double eps=1e-9;
const int inf=1e9;
typedef pair<int,int> P;
struct Point
{
  double x,y;
  Point(){x=0;y=0;}
  Point(double d_x,double d_y){x=d_x,y=d_y;}
  double operator*(Point obj){return obj.x*x+obj.y*y;}
  double operator%(Point obj){return obj.y*x-obj.x*y;}
  Point operator*(double b){Point tmp;tmp.x=x*b;tmp.y=y*b;return tmp;}
  Point operator/(double b){Point tmp;tmp.x=x/b;tmp.y=y/b;return tmp;}
  Point operator+(Point obj){Point tmp;tmp.x=x+obj.x;tmp.y=y+obj.y;return tmp;}
  Point operator-(){Point tmp;tmp.x=-x;tmp.y=-y;return tmp;}
  Point operator-(Point obj){Point tmp;tmp.x=x-obj.x;tmp.y=y-obj.y;return tmp;}
  Point operator-=(Point obj){x-=obj.x;y-=obj.y;return *this;}
  Point operator+=(Point obj){x+=obj.x;y+=obj.y;return *this;}
  Point operator/=(double b){x=x/b;y=y/b;return *this;}
  Point operator*=(double b){x=x*b;y=y*b;return *this;}
  double size(){return hypot(x,y);}
  Point unit(){return Point(x/size(),y/size());}
  Point normal(){return Point(y,-x);}
  double atan(){return atan2(y,x);}
};

bool operator<(Point a,Point b){return a.x!=b.x?a.x<b.x:a.y<b.y;}
bool operator>(Point a,Point b){return b<a;}
bool operator<=(Point a,Point b){return !(b<a);}
bool operator>=(Point a,Point b){return !(a<b);}
bool operator==(Point a,Point b){return (a-b).size()<eps;}
bool operator!=(Point a,Point b){return !(a==b);}

bool equal(double a,double b){return abs(a-b)<eps;}
double cross(Point a,Point b){return a%b;}
double dot(Point a,Point b){return a*b;}

int ccw(Point a,Point b,Point c)
{
  b=b-a;
  c=c-a;
  if(b%c>0) return +1;
  else if(b%c<0)return -1;
  else if(b*c<0) return +2;
  else if(b.size()<c.size()) return -2;
  else return 0;
}


class history
{
public:
  int pc,start,end;
  history(int p,int s,int e)
  {
    pc=p;start=s;end=e;
  }
};
int main(int argc,char const* argv[])
{
  vector<history> hist[10005];
  int N,M;
  int r,t,n,m,s,q,ts,te;
  int imos[1265];
  while(1)
    {
      cin >> N >> M;
      for(int i=0;i<10005;i++) hist[i].clear();
      if(!N) break;
      cin >> r;
      for(int i=0;i<r;i++)
	{
	  cin >> t >> n >> m >> s;
	  if(s==1)
	    {
	      hist[m].push_back(history(n,t,-1));
	    }
	  else
	    {
	      for(int j=0;j<hist[m].size();j++)
		{
		  if(hist[m][j].pc==n && hist[m][j].end==-1)
		    {
		      hist[m][j].end=t;
		      break;
		    }
		}
	    }
	}
      cin >> q;
      for(int i=0;i<q;i++)
	{
	  cin >> ts >> te >> m;
	  for(int j=0;j<1265;j++) imos[j]=0;
	  for(int j=0;j<hist[m].size();j++)
	    {
	      if(hist[m][j].start<te && hist[m][j].end > ts)
		{
		  imos[max(hist[m][j].start,ts)]+=1;
		  imos[min(hist[m][j].end,te)]-=1;
		}
	    }
	  int ans=0,cnt=0,start;
	  for(int j=0;j<1265;j++)
	    {
	      if(cnt==0 && imos[j] > 0)
		{
		  start=j;
		}
	      if(cnt>0 && cnt+imos[j]==0)
		{
		  ans+=(j-start);
		}
	      cnt+=imos[j];
	    }
	  cout << ans << endl;
	}
    }
  return 0;
}
     



Measured memory_bytes: 3340