#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <deque>
#include <complex>
#include <stack>
#include <queue>
#include <cstdio>
#include <cctype>
#include <cstring>
#include <ctime>
#include <iterator>
#include <bitset>
#include <numeric>
#include <list>
#include <iomanip>

#if __cplusplus >= 201103L
#include <array>
#include <tuple>
#include <initializer_list>
#include <unordered_set>
#include <unordered_map>
#include <forward_list>

#define cauto const auto&
#else

#endif

using namespace std;


namespace{
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

typedef vector<int> vint;
typedef vector<vector<int> > vvint;
typedef vector<long long> vll, vLL;
typedef vector<vector<long long> > vvll, vvLL;

#define VV(T) vector<vector< T > >

template <class T>
void initvv(vector<vector<T> > &v, int a, int b, const T &t = T()){
    v.assign(a, vector<T>(b, t));
}

template <class F, class T>
void convert(const F &f, T &t){
    stringstream ss;
    ss << f;
    ss >> t;
}


#define reep(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,n) reep((i),0,(n))
#define ALL(v) (v).begin(),(v).end()
#define PB push_back
#define F first
#define S second
#define mkp make_pair
#define RALL(v) (v).rbegin(),(v).rend()


#define MOD 1000000007LL
#define EPS 1e-8
static const int INF=1<<24;
int dp[2][100][100];
void mainmain(){
	int n,m;
	cin>>n>>m;
	rep(i,2){
		rep(j,100){
			rep(k,100){
				dp[i][j][k]=INF;
			}
		}
	}
	rep(i,n){
		int a,b,c,d;
		cin>>a>>b>>c>>d;
		a--;
		b--;
		dp[0][a][b]=c;
		dp[0][b][a]=c;
		dp[1][a][b]=d;
		dp[1][b][a]=d;
	}
	rep(k,m){
		rep(i,m){
			rep(j,m){
				rep(l,2){
					dp[l][i][j]=min(dp[l][i][j],dp[l][i][k]+dp[l][k][j]);
				}
			}
		}
	}
	int k;
	cin>>k;
	rep(i,k){
		int p,q,r;
		cin>>p>>q>>r;
		cout<<dp[r][p-1][q-1]<<endl;
	}
}



}
main() try{
    mainmain();
}
catch(...){
}