flist.toArray(new FunctionScoreQueryBuilder.FilterFunctionBuilder[flist.size()]));

        functionScoreQueryBuilder.boostMode(CombineFunction.REPLACE);
        functionScoreQueryBuilder.scoreMode(FunctionScoreQuery.ScoreMode.MULTIPLY);

        return functionScoreQueryBuilder;
    }

    /**
     * Checks if the query is a single word query.
     * @param query The query string.

                Map.of("_default", List.of("QUERY1")), //
                Set.of("QUERY1"), //
                buildQuery("QUERY1^10"));