* @deprecated Use {@link SuggestQueryBuilder#isHiraganaQuery(String)} instead.
     */
    @Deprecated
    protected boolean isHiraganaQuery(final String q) {
        return new SuggestQueryBuilder(readingConverter, normalizer, languages, prefixMatchWeight).isHiraganaQuery(q);
    }

    /**
     * Creates a SuggestQueryBuilder that routes isHiraganaQuery calls back through this instance's

        final List<FunctionScoreQueryBuilder.FilterFunctionBuilder> flist = new ArrayList<>();

        if (isSingleWordQuery(query) && !isHiraganaQuery(query)) {
            flist.add(new FunctionScoreQueryBuilder.FilterFunctionBuilder(QueryBuilders.prefixQuery(FieldNames.TEXT, query),
                    ScoreFunctionBuilders.weightFactorFunction(prefixMatchWeight)));

        assertTrue(queryBuilder.isHiraganaQuery("あ"));
        assertTrue(queryBuilder.isHiraganaQuery("あおぞら"));
        assertTrue(queryBuilder.isHiraganaQuery("けんさく"));
        assertTrue(queryBuilder.isHiraganaQuery("あいうえおかきくけこさしすせそたちつてとなにぬねのはひふへほまみむめもやゆよをわん"));
        assertTrue(queryBuilder.isHiraganaQuery("がぎぐげござじずぜぞだぢづでどばびぶべぼ"));
        assertTrue(queryBuilder.isHiraganaQuery("ぁぃぅぇぉっゃゅょ"));

        } else {
            index = SuggestConstants.EMPTY_STRING;
        }

        final boolean singleWordQuery = queryBuilder.isSingleWordQuery(query);
        final boolean hiraganaQuery = queryBuilder.isHiraganaQuery(query);
        for (int i = 0; i < hits.length && words.size() < size; i++) {
            final SearchHit hit = hits[i];

            final Map<String, Object> source = hit.getSourceAsMap();