#include "bits/stdc++.h"
using namespace std;
#define ll long long
#define endl '\n'
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define rep2(i,a,b) for(int i=int(a);i<int(b);i++)
#define pb emplace_back
#define all(x) (x).begin(),(x).end()
int mod=1e9+7;
int mod2=998244353;
const int INF=1e9;
//g++ -std=c++11 a.cpp

signed main(){
	ll n,m;
    while(1){
        cin>>n>>m;
        if(n==0&&m==0)break;
        ll r;
        cin>>r;
        vector<vector<ll> > imos(m,vector<ll>(1262,0));
        rep(i,r){
            ll t,a,b,s;
            cin>>t>>a>>b>>s;
            b--;
            if(s)imos[b][t]++;
            else imos[b][t]--;
        }

        ll q;
        cin>>q;
        rep(i,q){
            ll ts,te,c;
            cin>>ts>>te>>c;
            c--;
            ll ans=0;
            ll tmp=0;
            rep(j,1262){
                tmp+=imos[c][j];
                if(tmp>0&&j>=ts&&j<te)ans++;
            }
            cout<<ans<<endl;
        }
    }
}

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