if input().count('x')<8:
  print('YES')
else:
  print('NO') if input().count('x')<8:
  print('YES')
else:
  print('NO') input().count('x')<8 input().count('x') ().count () input count 'x' 8 print('YES') print 'YES' print('NO') print 'NO'
if input().count('x')<8:
  print('YES')
else:
  print('NO')