diff --git a/src/DataStructures/Queue.php b/src/DataStructures/Queue.php
index 48235e2..bc57ef9 100644
--- a/src/DataStructures/Queue.php
+++ b/src/DataStructures/Queue.php
@@ -22,10 +22,6 @@ declare(strict_types=1);
 
 namespace OCC\Basics\DataStructures;
 
-use Countable;
-use Iterator;
-use Serializable;
-
 /**
  * A type-sensitive, destructive First In, First Out Queue.
  *
diff --git a/src/DataStructures/Set.php b/src/DataStructures/Set.php
index f08fe33..7eaba35 100644
--- a/src/DataStructures/Set.php
+++ b/src/DataStructures/Set.php
@@ -25,7 +25,7 @@ namespace OCC\Basics\DataStructures;
 use InvalidArgumentException;
 
 /**
- * A type-sensitive, ordered set of items.
+ * A type-sensitive, ordered Set.
  *
  * @author Sebastian Meyer <sebastian.meyer@opencultureconsulting.com>
  * @package opencultureconsulting/basics
diff --git a/src/DataStructures/Stack.php b/src/DataStructures/Stack.php
index 84198d6..981b4ed 100644
--- a/src/DataStructures/Stack.php
+++ b/src/DataStructures/Stack.php
@@ -22,12 +22,8 @@ declare(strict_types=1);
 
 namespace OCC\Basics\DataStructures;
 
-use Countable;
-use Iterator;
-use Serializable;
-
 /**
- * A (type-sensitive) destructive Last In, First Out Stack.
+ * A type-sensitive, destructive Last In, First Out Stack.
  *
  * @author Sebastian Meyer <sebastian.meyer@opencultureconsulting.com>
  * @package opencultureconsulting/basics