UVa Q665

//UVa Q665
#include <bits/stdc++.h>
using namespace std;

struct check{
    bool l[100] = {0};
    bool r[100] = {0};
    char res;
};

int32_t main(){
    int t;
    cin >> t;
    while(t--){
        int n, k;
        cin >> n >> k;
        check arr[100];
        for(int i = 0; i < k; ++i){
            int p;
            cin >> p;
            for(int j = 0; j < p; ++j){
                int x;
                cin >> x;
                arr[i].l[x] = 1;
            }
            for(int j = 0; j < p; ++j){
                int x;
                cin >> x;
                arr[i].r[x] = 1;
            }
            cin >> arr[i].res;
        }
        int ans = -1;
        for(int i = 1; i <= n && ans; ++i){
            bool ok = 1;
            int big = 0;
            for(int j = 0; j < k && ok; ++j){
                //cout << ' ' << arr[j].res << ' ' << big << '\n';
                if(arr[j].res == '=' && (arr[j].l[i] || arr[j].r[i]))ok = 0;
                else if((arr[j].res == '<' && arr[j].r[i]) || (arr[j].res == '>' && arr[j].l[i])){
                    if(big == -1)ok = 0;
                    else big = 1;
                }else if((arr[j].res == '>' && arr[j].r[i]) || (arr[j].res == '<' && arr[j].l[i])){
                    if(big == 1)ok = 0;
                    else big = -1;
                }
            }
            //cout << ok << ' ' << big << '\n';
            if(ok){
                if(ans != -1)ans = 0;
                else ans = i;
            }
        }
        cout << ans << '\n';
        if(t)cout << '\n';
    }
    return 0;
}