private boolean isAlternateWords( String word ) {
        String[] words = word.split( "/" );
        if( words.length > 1 ) {
            for( String w : words ){
                if( !isValidWord( w )){
                    return false;
                }
            }
            for( String w : words ){
                addWord( w );
            }
            return true;
        }
        return false;
    }