#include <cstdio>#define N 300+1#define M 200using namespace std;bool useful[M][N];bool killed[M];int test(int tester,int end){ bool cover[N]={0}; int other,i; for(other=0;other<end;other++){ if(other==tester||killed[other]) continue; for(i=0;i<N;i++){ if((useful[other][i]&&!useful[tester][i])){ break; } } if(i<N) continue; for(i=0;i<N;i++){ if(useful[other][i]) cover[i]=1; } } for(i=0;i<N;i++){ if(useful[tester][i]&&!cover[i]) return 0; } killed[tester]=1; return 1;}void solve(int numOfDisease,int numOfMedicine){for(int i=0;i<M;i++) for(int j=0;j<N;j++) useful[i][j]=0;for(int i=0;i<M;i++) killed[i]=0; int getlevel,hit; for(int i=0;i<numOfMedicine;i++){ scanf("%d",&getlevel); for(int j=0;j<getlevel;j++){ scanf("%d",&hit); useful[i][hit]=1; } } int total=0; for(int i=0;i<numOfMedicine;i++){ total+=test(i,numOfMedicine); } printf("%dn",total);}int main(){ int n,m; for(scanf("%d%d",&n,&m);!(n==0&&m==0);scanf("%d%d",&n,&m)) solve(n,m); return 0;}
