}

    public SuggesterBuilder readingConverter(final ReadingConverter readingConverter) {
        this.readingConverter = readingConverter;
        return this;
    }

    public SuggesterBuilder contentsReadigConverter(final ReadingConverter contentsReadingConverter) {
        this.contentsReadingConverter = contentsReadingConverter;
        return this;
    }

    public SuggesterBuilder normalizer(final Normalizer normalizer) {