//不會敲,是偶看過別人的結題報告後敲的,學習下
#include<iostream>
#include<algorithm>
using namespace std;
typedef struct Node
{ int label;
int cnt;
int leaf[200];
};
Node tree[200];
int solve(int i)
{ int stone[200],result,temp;
if(tree[i].cnt==0)
return 1;
for(int j=0;j<tree[i].cnt;j++)
stone[j]=solve(tree[i].leaf[j]);
sort(stone,stone+tree[i].cnt);
result=stone[tree[i].cnt-1];
temp=result-1;
for(int k=tree[i].cnt-2;k>=0;k--)
{ if(temp-stone[k]>=0)
temp--;
else
{result=result+stone[k]-temp;
temp=stone[k]-1;
}
}
return result;
}
int main()
{ int n,m;
freopen("in.txt","r",stdin);
freopen("out.txt","w",stdout);
scanf("%d",&n);
while(n--)
{ scanf("%d",&m);
for(int i=1;i<=m;i++)
{ scanf("%d%d",&tree[i].label,&tree[i].cnt);
for(int j=0;j<tree[i].cnt;j++)
scanf("%d",&tree[i].leaf[j]);
}
printf("%d\n",solve(1));
}
return 0;
}