#include <bits/stdc++.h>
#define NMAX 1000005

using namespace std;

struct A
{
    int nr, val[10];
};

bool crt ( A x, A y );

A v[NMAX];
int t, n, i, j, z, nr, a[NMAX], S[NMAX], maxx, nrr;
char c, s[30];

int main()
{
    cin >> t;
    while ( t-- )
    {
        cin >> n;
        z = nrr = 0;
        for ( i = 1 ; i <= n ; i++ )
        {
            cin >> c >> nr;
            cin.getline ( s, 30 );

            if ( nr > 0 )
            {
                v[++z].nr = nr;
                if ( s[1] == 'T' && c == '<' ) v[z].val[1]++;
                else if ( s[1] == 'T' && c == '=' ) v[z].val[3]++;
                else if ( s[1] == 'T' && c == '>' ) v[z].val[4]++;

                else if ( s[1] == 'F' && c == '<' ) v[z].val[5]++;
                else if ( s[1] == 'F' && c == '=' ) v[z].val[6]++;
                else if ( s[1] == 'F' && c == '>' ) v[z].val[2]++;
            }

            else
            {
                if ( s[1] == 'T' && c == '>' ) nrr++;
                else if ( s[1] == 'F' && c == '<' ) nrr++;
                else if ( s[1] == 'F' && c == '=' ) nrr++;
            }
        }

        sort ( v + 1, v + n + 1, crt );

        for ( j = 1 ; j < n ; j++ )
            {
                i = j + 1;
                while ( i <= n && v[j].nr == v[i].nr )
                {
                    if ( v[i].val[1] != 0 ) v[j].val[1] += v[i].val[1];
                    if ( v[i].val[2] != 0 ) v[j].val[2] += v[i].val[2];
                    if ( v[i].val[3] != 0 ) v[j].val[3] += v[i].val[3];
                    if ( v[i].val[4] != 0 ) v[j].val[4] += v[i].val[4];
                    if ( v[i].val[5] != 0 ) v[j].val[5] += v[i].val[5];
                    if ( v[i].val[6] != 0 ) v[j].val[6] += v[i].val[6];

                    i++;
                }

                j = i - 1;
            }

        for ( j = 1 ; j <= n ; j++ )
        {
            if ( v[j].val[1] != 0 ) a[1] += v[j].val[1], a[j] -= v[j].val[1];
            if ( v[j].val[2] != 0 ) a[2] += v[j].val[2], a[j+1] -= v[j].val[2];
            if ( v[j].val[3] != 0 ) a[j] += v[j].val[3], a[j+1] -= v[j].val[3];
            if ( v[j].val[4] != 0 ) a[j+1] += v[j].val[4];
            if ( v[j].val[5] != 0 ) a[j] += v[j].val[5];
            if ( v[j].val[6] != 0 ) a[1] += v[j].val[6], a[j] -= v[j].val[6], a[j+1] += v[j].val[6];

            i = j + 1;
            while ( i <= n && v[j].nr == v[i].nr ) i++;
            j = i - 1;
        }

        S[1] = a[1];
        for ( i = 2 ; i <= n ; i++ ) S[i] = S[i-1] + a[i];

        maxx = 0;
        for ( i = 1 ; i <= n ; i++ ) maxx = max ( maxx, S[i] );
        cout << n - maxx - nrr << '\n';

        /*for ( i = 1 ; i <= n ; i++ ) cout << S[i] << ' ';
        cout << '\n';*/

        for ( i = 1 ; i <= n ; i++ )
        {
            a[i] = S[i] = v[i].nr = 0;
            for ( j = 1 ; j <= 6 ; j++ ) v[i].val[j] = 0;
        }

    }

    return 0;
}

bool crt ( A x, A y )
{
    if ( x.nr < y.nr ) return 1;

    return 0;
}

/*

2
3
= 5 True
> 3 True
= 1 False
2
> 4 True
= 4 True

*/