diff --git a/src/MDAppointmentAttendanceModeSet.php b/src/MDAppointmentAttendanceModeSet.php
new file mode 100644
index 0000000..85f7abd
--- /dev/null
+++ b/src/MDAppointmentAttendanceModeSet.php
@@ -0,0 +1,38 @@
+<?PHP
+/**
+ * Contains a class for controlling the list of available attendance modes
+ * to appointment / event.
+ *
+ * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+ */
+declare(strict_types = 1);
+
+/**
+ * Class containing available attendance modes.
+ */
+final class MDAppointmentAttendanceModeSet extends MDValueSet {
+
+    const MODES = [
+        'offline',
+        'online',
+        'mixed',
+    ];
+
+    const MODES_TO_SCHEMA_ORG = [
+        'offline' => 'https://schema.org/OfflineEventAttendanceMode',
+        'online' => 'https://schema.org/OnlineEventAttendanceMode',
+        'mixed' => 'https://schema.org/MixedEventAttendanceMode',
+    ];
+
+    /**
+     * Gets a list of the entries in a translated version.
+     *
+     * @param MDTlLoader $tlLoader Translation loader.
+     *
+     * @return array<string>
+     */
+    public static function getSortedList(MDTlLoader $tlLoader):array {
+        return parent::getTlSortedList($tlLoader, self::AVAILABLE_ROLES, "appointment_attendance_modes", "appointment_attendance_modes");
+
+    }
+}
diff --git a/src/MDAppointmentContributorsSet.php b/src/MDAppointmentContributorsSet.php
new file mode 100644
index 0000000..1a57406
--- /dev/null
+++ b/src/MDAppointmentContributorsSet.php
@@ -0,0 +1,31 @@
+<?PHP
+/**
+ * Contains a class for controlling the list of available contributor types
+ * to appointment / event.
+ *
+ * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+ */
+declare(strict_types = 1);
+
+/**
+ * Class containing available contributor roles.
+ */
+final class MDAppointmentContributorsSet extends MDValueSet {
+
+    const AVAILABLE_ROLES = [
+        'organizer',
+        'presenter',
+    ];
+
+    /**
+     * Gets a list of the entries in a translated version.
+     *
+     * @param MDTlLoader $tlLoader Translation loader.
+     *
+     * @return array<string>
+     */
+    public static function getSortedList(MDTlLoader $tlLoader):array {
+        return parent::getTlSortedList($tlLoader, self::AVAILABLE_ROLES, "appointment_contributor_roles", "appointment_contributor_roles");
+
+    }
+}
diff --git a/src/MDAppointmentStatusSet.php b/src/MDAppointmentStatusSet.php
new file mode 100644
index 0000000..4778cbe
--- /dev/null
+++ b/src/MDAppointmentStatusSet.php
@@ -0,0 +1,39 @@
+<?PHP
+/**
+ * Contains a class for controlling the list of available statuses to appointment / event.
+ *
+ * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+ */
+declare(strict_types = 1);
+
+/**
+ * Class containing available status.
+ */
+final class MDAppointmentStatusSet extends MDValueSet {
+
+    const STATUS = [
+        'scheduled',
+        'cancelled',
+        'moved_online',
+        'postponed',
+    ];
+
+    const STATUS_TO_SCHEMA_ORG = [
+        'scheduled' => 'https://schema.org/EventScheduled',
+        'cancelled' => 'https://schema.org/EventCancelled',
+        'moved_online' => 'https://schema.org/EventMovedOnline',
+        'postponed' => 'https://schema.org/EventPostponed',
+    ];
+
+    /**
+     * Gets a list of the entries in a translated version.
+     *
+     * @param MDTlLoader $tlLoader Translation loader.
+     *
+     * @return array<string>
+     */
+    public static function getSortedList(MDTlLoader $tlLoader):array {
+        return parent::getTlSortedList($tlLoader, self::STATUS, "appointment_status", "appointment_status");
+
+    }
+}
diff --git a/src/MDExhibitionContributorsSet.php b/src/MDExhibitionContributorsSet.php
new file mode 100644
index 0000000..8ceb4a1
--- /dev/null
+++ b/src/MDExhibitionContributorsSet.php
@@ -0,0 +1,34 @@
+<?PHP
+/**
+ * Contains a class for controlling the list of available contributor types
+ * to exhibitions.
+ *
+ * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+ */
+declare(strict_types = 1);
+
+/**
+ * Class containing available contributor roles.
+ */
+final class MDExhibitionContributorsSet extends MDValueSet {
+
+    const AVAILABLE_ROLES = [
+        'concept',
+        'curator',
+        'design',
+        'coordinator',
+        'protagonist',
+    ];
+
+    /**
+     * Gets a list of the entries in a translated version.
+     *
+     * @param MDTlLoader $tlLoader Translation loader.
+     *
+     * @return array<string>
+     */
+    public static function getSortedList(MDTlLoader $tlLoader):array {
+        return parent::getTlSortedList($tlLoader, self::AVAILABLE_ROLES, "exhibition_contributor_roles", "exhibition_contributor_roles");
+
+    }
+}