@Override
        public int compareTo(Token other) {
            if (this.token().length() < other.token().length()) return 1;
            if (this.token().length() == other.token().length()) return 0;
            return -1;
        }
Returns the token to replace occurrences of this by, which equals token() unless this has a replacement.
linguistics/src/main/java/com/yahoo/language/process/SpecialTokens.java