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