diff --git a/classes/Importer.php b/classes/Importer.php
index 3fed8e08f22df8a42380ee7c9e23c1b0175f91fa..1b33e1dc06bd9b585eff73d3693a643f1ab73da6 100644
--- a/classes/Importer.php
+++ b/classes/Importer.php
@@ -298,13 +298,16 @@ final class Importer
         }
     }
 
-    private function search($graph, $s = null, $p = null, $o = null)
+    private function search($graph, $s = null, $p = null, $o = null): array
     {
         $results = array();
+
         foreach ($graph as $v) {
             $threeOks = 0;
 
-            //Check subject
+            /**
+             * Check subject
+             */
             if ($s != null) {
                 if ($v['s'] == $s) {
                     $threeOks++;
@@ -313,7 +316,9 @@ final class Importer
                 $threeOks++;
             }
 
-            //Check predicate
+            /**
+             * Check predicate.
+             */
             if ($p != null) {
                 if ($v['p'] == $p) {
                     $threeOks++;
@@ -322,7 +327,9 @@ final class Importer
                 $threeOks++;
             }
 
-            //Check object
+            /**
+             * Check object.
+             */
             if ($o != null) {
                 if ($v['o'] == $o) {
                     $threeOks++;
@@ -335,8 +342,8 @@ final class Importer
                 array_push($results, $v);
             }
         }
+
         return $results;
-        //$this->showFinishing();
     }
 
     private function showInterface(): void