* Get the value for the key 'suggest.popular.word.excludes'. <br>
     * The value is, e.g.  <br>
     * comment: Excluded words for popular word suggestion.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getSuggestPopularWordExcludes();

    /**
     * Get the value for the key 'suggest.popular.word.excludes' as {@link Integer}. <br>