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