1 #include <iostream>
 2 #include <cstring>
 3 #include <algorithm>
 4 #include <cstdio>
 5 using namespace std;
 6 const int mod = 1000;
 7 struct Mat
 8 {
 9     int mat[30][30];
10 };
11 int n,m;
12 Mat operator * (Mat x, Mat y)
13 {
14     Mat c;
15     memset(c.mat, 0, sizeof(c.mat));
16     for(int t = 0; t < n; t++)
17     {
18         for(int i = 0; i < n; i++)
19         {
20             for(int j = 0; j < n; j++)
21             {
22                 c.mat[i][j] += x.mat[i][t] % mod * (y.mat[t][j] % mod);
23                 c.mat[i][j] %= mod;
24             }
25         }
26     }
27     return c;
28 }
29 Mat operator ^ (Mat x,int t)
30 {
31     Mat c;
32     for(int i = 0; i < n; i++)
33         for(int j = 0; j < n; j++)
34             c.mat[i][j] = (i == j);
35     while(t)
36     {
37         if(t & 1)
38             c = c * x;
39         x = x * x;
40         t >>= 1;
41     }
42     return c;
43 }
44 int main()
45 {
46     while(scanf("%d%d", &n, &m) != EOF)
47     {
48         if(n == 0 && m == 0)
49             break;
50         Mat a,temp;
51         int t,A,B,k;
52         memset(a.mat, 0, sizeof(a.mat));
53         while(m--)
54         {
55             scanf("%d%d", &A,&B);
56             a.mat[A][B] = 1;
57         }
58         scanf("%d", &t);
59         while(t--)
60         {
61             for(int i = 0; i < n; i++)
62             {
63                 for(int j = 0; j < n; j++)
64                     temp.mat[i][j] = a.mat[i][j];
65             }
66             scanf("%d%d%d",&A,&B,&k);
67             temp = temp ^ k;
68             printf("%d\n",temp.mat[A][B]);
69         }
70     }
71     return 0;
72 }