'''
Created on Mar 16, 2017

@author: Madalina
'''
alphabet = 'abcdefghijklmnopqrstuvwxyz'
morse = {}

for i in range(len(alphabet)):
    code = input()
    code = code[2:]
    morse[alphabet[i]] = code
    
n = int(input())

words = []
for i in range(n):
    word = input()
    words.append([])
    for letter in word:
        for sign in morse[letter]:
            words[i].append(sign)
    
maxx = 0
for i in range(len(words) - 1):
    k = 1
    for j in range(i + 1, len(words)):
        if words[i] == words[j]:
            k = k + 1
    if k > maxx:
        maxx = k 

if maxx == 1:
    print(-1)
else:  
    print(maxx)