public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int a [ ] = new int [ 4 ] , ns = 0 , we = 0 ;
  String s = new String ( ) ;
  s = sc . next ( ) ;
  sc . close ( ) ;
  for ( int i = 0 ;
  i < s . length ( ) ;
  ++ i ) {
    if ( s . charAt ( i ) == 'N' ) ++ a [ 0 ] ;
    else if ( s . charAt ( i ) == 'W' ) ++ a [ 1 ] ;
    else if ( s . charAt ( i ) == 'S' ) ++ a [ 2 ] ;
    else ++ a [ 3 ] ;
  }
  for ( int i = 0 ;
  i < 4 ;
  i += 2 ) if ( a [ i ] > 0 ) ++ ns ;
  for ( int i = 1 ;
  i < 4 ;
  i += 2 ) if ( a [ i ] > 0 ) ++ we ;
  System . out . print ( ns % 2 > 0 || we % 2 > 0 ? "No" : "Yes" ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int a [ ] = new int [ 4 ] , ns = 0 , we = 0 ; String s = new String ( ) ; s = sc . next ( ) ; sc . close ( ) ; for ( int i = 0 ; i < s . length ( ) ; ++ i ) { if ( s . charAt ( i ) == ' N ' ) ++ a [ 0 ] ; else if ( s . charAt ( i ) == ' W ' ) ++ a [ 1 ] ; else if ( s . charAt ( i ) == ' S ' ) ++ a [ 2 ] ; else ++ a [ 3 ] ; } for ( int i = 0 ; i < 4 ; i += 2 ) if ( a [ i ] > 0 ) ++ ns ; for ( int i = 1 ; i < 4 ; i += 2 ) if ( a [ i ] > 0 ) ++ we ; System . out . print ( ns % 2 > 0 || we % 2 > 0 ? " No " : " Yes " ) ; }
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