1 #include<bits/stdc++.h>
 2 using namespace std;
 3 #define pb(x) push_back(x)
 4 #define ll long long
 5 #define mk(x, y) make_pair(x, y)
 6 #define lson l, m, rt<<1
 7 #define mem(a) memset(a, 0, sizeof(a))
 8 #define rson m+1, r, rt<<1|1
 9 #define mem1(a) memset(a, -1, sizeof(a))
10 #define mem2(a) memset(a, 0x3f, sizeof(a))
11 #define rep(i, a, n) for(int i = a; i<n; i++)
12 #define ull unsigned long long
13 typedef pair<int, int> pll;
14 const double PI = acos(-1.0);
15 const double eps = 1e-8;
16 const int mod = 1e9+7;
17 const int inf = 1061109567;
18 const int dir[][2] = { {-1, 0}, {1, 0}, {0, -1}, {0, 1} };
19 const int maxn = 1e6+5;
20 int head[maxn], sg[1005], num;
21 struct node
22 {
23     int to, nextt;
24 }e[maxn];
25 void init() {
26     mem1(head);
27     num = 0;
28     mem1(sg);
29 }
30 void add(int u, int v) {
31     e[num].to = v;
32     e[num].nextt = head[u];
33     head[u] = num++;
34 }
35 int mex(int x) {
36     if(~sg[x])
37         return sg[x];
38     bool vis[1005];
39     memset(vis, false, sizeof(vis));
40     for(int i = head[x]; ~i; i = e[i].nextt) {
41         int v = e[i].to;
42         if(sg[v]==-1)
43             sg[v] = mex(v);
44         vis[sg[v]] = 1;
45     }
46     for(int i = 0; ; i++)
47         if(!vis[i])
48             return i;
49 }
50 int main()
51 {
52     int n, x, y;
53     while(scanf("%d", &n)!=EOF) {
54         init();
55         for(int i = 0; i<n; i++) {
56             scanf("%d", &x);
57             while(x--) {
58                 scanf("%d", &y);
59                 add(i, y);
60             }
61         }
62         while(scanf("%d", &x)&&x) {
63             int ans = 0;
64             for(int i = 0; i<x; i++) {
65                 scanf("%d", &y);
66                 ans ^= mex(y);
67             }
68             if(ans) {
69                 puts("WIN");
70             } else {
71                 puts("LOSE");
72             }
73         }
74     }
75 }