#include <bits/stdc++.h>
#include <bits/extc++.h>
using std::cin,std::cout,std::vector;
#define endl "\n"
typedef std::pair<int,int> PII;

void solve()
{
    int n,q; cin>>n>>q;
    int c; cin>>c;
    vector<int>aa(c,0);
    vector<std::string>name(c+1);
    __gnu_pbds::gp_hash_table<std::string,int>mp;
    // std::unordered_map<std::string,int>mp;
    for(int i=0;i<c;++i){
        cin>>name[i];
        mp[name[i]]=i;
    }
    name[c]="Let's go to the library!!";
    for(int i=0;i<q;++i){
        int m; cin>>m;
        while(m--){
            std::string s; cin>>s;
            aa[mp[s]]|=1<<i;
        }
    }
    
    std::map<int,int>mp2;
    for(int i=0;i<c;++i){
        if(mp2.contains(aa[i])) mp2[aa[i]]=c;
        else mp2[aa[i]]=i;
    }
    while(n--){
        int tt=0;
        for(int i=0;i<q;++i){
            int t; cin>>t;
            if(t) tt|=1<<i;
        }
        if(mp2.contains(tt)) cout<<name[mp2[tt]]<<endl;
        else cout<<name[c]<<endl;
    }
}

int main()
{
    cin.tie(nullptr)->sync_with_stdio(false);
    int T; cin>>T;
    while(T--) solve();
    return 0;
}