#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <string>
using namespace std;
bool S, E, N, W;
string s;
int  ()
{
 ios::sync_with_stdio(false);
    cin.tie(0);
    
 cin >> s;
    for (register int i = 0; i < s.length(); i++)
  {
        if (s[i] == 'S') S = 1;
     if (s[i] == 'E') E = 1;
     if (s[i] == 'N') N = 1;
     if (s[i] == 'W') W = 1;
 }
    if ((S ^ N) || (E ^ W)) puts ("No");
  else puts ("Yes");
    return 0;
}