diff --git a/classes/api/attempt_scored.php b/classes/api/attempt_scored.php
index 9c9ad8e..ced80a7 100644
--- a/classes/api/attempt_scored.php
+++ b/classes/api/attempt_scored.php
@@ -30,8 +30,8 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class attempt_scored extends attempt {
-    /** @var string */
-    public string $scoringstate;
+    /** @var string|null */
+    public ?string $scoringstate;
 
     /** @var string */
     public string $scoringcode;
@@ -39,18 +39,15 @@ class attempt_scored extends attempt {
     /** @var float|null */
     public ?float $score = null;
 
-    /** @var classified_response[]|null */
-    public ?array $classification = null;
-
     /**
      * Initializes a new instance.
      *
      * @param int $variant
      * @param attempt_ui $ui
-     * @param string $scoringstate
      * @param string $scoringcode
+     * @param string|null $scoringstate
      */
-    public function __construct(int $variant, attempt_ui $ui, string $scoringstate, string $scoringcode) {
+    public function __construct(int $variant, attempt_ui $ui, string $scoringcode, ?string $scoringstate = null) {
         parent::__construct($variant, $ui);
 
         $this->scoringstate = $scoringstate;
diff --git a/classes/api/classified_response.php b/classes/api/classified_response.php
deleted file mode 100644
index daad889..0000000
--- a/classes/api/classified_response.php
+++ /dev/null
@@ -1,64 +0,0 @@
-<?php
-// This file is part of the QuestionPy Moodle plugin - https://questionpy.org
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-namespace qtype_questionpy\api;
-
-use qtype_questionpy\array_converter\array_converter;
-use qtype_questionpy\array_converter\converter_config;
-
-defined('MOODLE_INTERNAL') || die;
-
-/**
- * See {@see \question_type::get_possible_responses()} and {@see \question_with_responses::classify_response()}.
- *
- * @package    qtype_questionpy
- * @author     Maximilian Haye
- * @copyright  2023 TU Berlin, innoCampus {@link https://www.questionpy.org}
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-class classified_response {
-    /** @var string */
-    public string $subquestionid;
-
-    /** @var string */
-    public string $responseclass;
-
-    /** @var string */
-    public string $response;
-
-    /** @var float */
-    public float $score;
-
-    /**
-     * Initializes a new instance.
-     *
-     * @param string $subquestionid
-     * @param string $responseclass
-     * @param string $response
-     * @param float $score
-     */
-    public function __construct(string $subquestionid, string $responseclass, string $response, float $score) {
-        $this->subquestionid = $subquestionid;
-        $this->responseclass = $responseclass;
-        $this->response = $response;
-        $this->score = $score;
-    }
-}
-
-array_converter::configure(attempt_scored::class, function (converter_config $config) {
-    $config->rename("subquestionid", "subquestion_id")
-        ->rename("responseclass", "response_class");
-});