#include <fstream>
#include <vector>
#include <cstring>
using namespace std;
ifstream f("zvon.in");
ofstream g("zvon.out");
vector <int> G[100002];
bool Use[100002];
int N,T,Result;
void Read()
{
    f>>N;
    int i;
    for(i=1;i<=N-1;i++)
    {
        int x,y;
        f>>x>>y;
        G[x].push_back(y);
    }
}
void DFS(int nod)
{
    unsigned int i;
    Use[nod]=1;
    int number=0;
    for(i=0;i<G[nod].size();i++)
        {
            int Vecin=G[nod][i];
            if(!Use[Vecin])
            {
                DFS(Vecin);
                Result+=number;
                number=1;
            }
        }
}
int main()
{
    f>>T;
    while(T!=0)
    {
        Read();
        Result=0;
        memset(Use,0,sizeof(Use));
        DFS(1);
        if(Result!=0)
            Result++;
        g<<Result<<"\n";
        T--;
    }
    return 0;
}