Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func main() {
	io := NewIo()
	defer io.Flush()

	for {
		N := io.NextInt()
		if N == 0 {
			break
		}
		set := make([]map[int]struct{}, N)
		for i := 0; i < N; i++ {
			set[i] = make(map[int]struct{})
			M := io.NextInt()
			for j := 0; j < M; j++ {
				p := io.NextInt()
				set[i][p] = struct{}{}
			}
		}
		K := io.NextInt()
		l := make([]int, K)
		for i := 0; i < K; i++ {
			l[i] = io.NextInt()
		}

		ans := 0
	FOR_OUTER:
		for i := 0; i < N; i++ {
			for j := 0; j < K; j++ {
				if _, f := set[i][l[j]]; f == false {
					continue FOR_OUTER
				}
			}
			switch ans {
			case 0:
				ans = i + 1
			default:
				ans = -1
			}
		}
		if ans > 0 {
			io.Println(ans)
		} else {
			io.Println(-1)
		}
	}
}

// I/O template
type Io struct {
	reader    *bufio.Reader
	writer    *bufio.Writer
	tokens    []string
	nextToken int
}

func NewIo() *Io {
	return &Io{
		reader: bufio.NewReader(os.Stdin),
		writer: bufio.NewWriter(os.Stdout),
	}
}

func (io *Io) Flush() {
	err := io.writer.Flush()
	if err != nil {
		panic(err)
	}
}

func (io *Io) NextLine() string {
	var buff []byte
	for {
		line, isPrefix, err := io.reader.ReadLine()
		if err != nil {
			panic(err)
		}
		buff = append(buff, line...)
		if !isPrefix {
			break
		}
	}
	return string(buff)
}

func (io *Io) Next() string {
	for io.nextToken >= len(io.tokens) {
		line := io.NextLine()
		io.tokens = strings.Fields(line)
		io.nextToken = 0
	}
	s := io.tokens[io.nextToken]
	io.nextToken++
	return s
}

func (io *Io) NextInt() int {
	i, err := strconv.Atoi(io.Next())
	if err != nil {
		panic(err)
	}
	return i
}

func (io *Io) NextFloat() float64 {
	i, err := strconv.ParseFloat(io.Next(), 64)
	if err != nil {
		panic(err)
	}
	return i
}

func (io *Io) Println(a ...interface{}) {
	fmt.Fprintln(io.writer, a...)
}

func (io *Io) Printf(format string, a ...interface{}) {
	fmt.Fprintf(io.writer, format, a...)
}

func (io *Io) PrintIntSlice(a []int) {
	b := []interface{}{}
	for _, x := range a {
		b = append(b, x)
	}
	io.Println(b...)
}

func (io *Io) PrintStringSlice(a []string) {
	b := []interface{}{}
	for _, x := range a {
		b = append(b, x)
	}
	io.Println(b...)
}

func Log(name string, value interface{}) {
	fmt.Fprintf(os.Stderr, "%s=%+v\n", name, value)
}

func ExampleIo() {
	io := NewIo()
	defer io.Flush()
	a := make([]int, 0, 3)
	a[0], a[1], a[2] = io.NextInt(), io.NextInt(), io.NextInt()
	io.Println(a)
	io.PrintIntSlice(a)
	Log("io", a)
}

Python: while True:
  n = int(raw_input())
  if n == 0:
    break

  data = []

  for i in range(n):
    elements = list(map(int, raw_input().split(' ')))
    uid = elements[0]
    uid = i+1
    ps = elements[1:]
    ps = list(set(ps))
    ps = sorted(ps)

    data.append((uid, ps))

  query = list(map(int, raw_input().split(' ')))
  query = list(set(query))
  query = sorted(query)

  ans = []

  for uid, ps in data:
    plausible = True

    for q in query:
      if q not in ps:
        plausible = False

    if plausible:
      ans.append(uid)

  if len(ans) == 1:
    print(ans[0])

  else:
    print(-1)

Python: while 1:
    N = int(input())
    if N  == 0: break
    ids = [set(list(input().split()[1:])) for _ in range(N)]
    target =set(input().split()[1:])
    ans =[]
    for i in range(N):
        if target <= ids[i]:ans.append(i+1)
    print(ans[0] if len(ans) ==1 else -1)

Python: while True:
    N = int(input())
    if N == 0:
        break
    PPP = []

    for i in range(N):
        P = set(list(map(int, input().split()))[1:])
        PPP.append(P)


    K = set(list(map(int, input().split()))[1:])
    # print(PPP)
    # print(K)

    potential = []
    for i, p in enumerate(PPP):
        hoge = K - p
        if len(hoge) == 0:
            potential.append(i+1)

    if len(set(potential)) != 1:
        print(-1)
    else:
        print(potential[-1])

Python: while True:
    N = int(input())
    if N == 0:break
    flgs = [0 for i in range(N)]
    for i in range(N):
        src = list(map(int,input().split()))
        for k in src[1:]:
            flgs[i] |= (1 << k)
    target = 0
    src = list(map(int,input().split()))
    for k in src[1:]:
        target |= (1 << k)

    ans = -1
    for i in range(N):
        if (flgs[i] | target) == flgs[i]:
            if ans < 0:
                ans = i+1
            else:
                ans = -1
                break
    print(ans)

Python: results = []

while True:
    N = int(input())
    if N == 0:
        break
       
    A = [list(map(int, input().split())) for _ in range(N)]
    K = list(map(int, input().split()))
    
    count = 0
    for i in range(N):
        tmp = 0
        A[i][0] = -1
        for j in range(K[0]):
            if K[j+1] in A[i]:
                tmp += 1
                
        if tmp == K[0]:
            count += 1
            res = i + 1
    
    if count == 1:
        results.append(res)
    else:
        results.append(-1)
        
for result in results:
    print(result)

Python: # & C:/Python38/python.exe c:/Users/kenta.aoyama/Desktop/work/accounts/aoj/icpc/otomori.py

#
while True:
    persons = int(input())
    if persons == 0: break

    receivedlist = []
    for i in range(persons):
        target = list(map(int, input().split()))
        target = target[1:]
        target = set(target)
        receivedlist.append(target)
 
    target = list(map(int, input().split()))
    target = set(target[1:])

    answer = []
    for i in range(len(receivedlist)):
        received_set = receivedlist[i]
        diff = target - received_set
        if not diff: answer.append(i+1)

    if len(answer) == 1:
        print(answer[0])
    else:
        print(-1)

Python: while 1:
    n=int(input())
    if n==0:break
    a=[set(list(map(int,input().split()))[1:])for _ in range(n)]
    b=set(list(map(int,input().split()))[1:])
    c=[i+1 for i in range(n) if b<=a[i]]
    print(c[0] if len(c)==1 else -1)

C++: #include <stdio.h>
#include <string.h>

int main(void){
	int member[100][100], leak[100], n, m, i, j, x, count;
	scanf("%d",&n);
	while(n){
		memset(member,0,sizeof(member));
		memset(leak,0,sizeof(leak));
		for(i = 0;i < n;i++){
			scanf("%d",&m);
			for(j = 0;j < m;j++){
				scanf("%d",&x);
				member[i][x - 1]++;
			}
		}
		scanf("%d",&m);
		for(i = 0;i < m;i++){
			scanf("%d",&x);
			leak[x - 1]++;
		}
		for(j = 0;j < n;j++){
			if(leak[j]){
				count = 0;
				for(i = 0;i < n;i++)
					if(member[i][j]) count++;
				if(count == 1){
					for(i = 0;i < n;i++)
						if(member[i][j]) break;
				}
				if(i != n)
					break;
			}
		}
		if(j != n)
			printf("%d\n",i + 1);
		else
			printf("-1\n");
		scanf("%d",&n);
	}
	return 0;
}