S=input()
if S.count('x')>=8:
    print('NO')
else:
    print('YES') S=input() S input() input if S.count('x')>=8:
    print('NO')
else:
    print('YES') S.count('x')>=8 S.count('x') S.count S count 'x' 8 print('NO') print 'NO' print('YES') print 'YES' S=input() input() S
S=input()
if S.count('x')>=8:
    print('NO')
else:
    print('YES')