diff --git a/.gitignore b/.gitignore
index 3169366..0db60ea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
+benchmark/node_modules/*
+benchmark/out/*
+benchmark/resources/*
+
 # Hide .env from repo
 .env
 
diff --git a/src/Filesystem/FileReader.php b/src/Filesystem/FileReader.php
index bd81a42..f8bde27 100644
--- a/src/Filesystem/FileReader.php
+++ b/src/Filesystem/FileReader.php
@@ -191,9 +191,9 @@ private function getNextFileFromTimestamp($timestamp) {
 
     // Get previous page for requested timestamp (this is the previous page to page_for_timestamp)
     private function getPreviousFileFromTimestamp($timestamp) {
-        $prev_ts = $this->getPreviousTimestampFromTimestamp($timestamp);
+        $prev_ts = $this->getPreviousTimestampFromTimestamp($timestamp); // file containing timestamp
+        $prev_ts = $this->getPreviousTimestampFromTimestamp($prev_ts - 1); // Previous file
         if ($prev_ts) {
-            $prev_ts -= $this->second_interval;
             if ($this->out_fs->has($prev_ts)) {
                 return date("Y-m-d\TH:i:s", $prev_ts);
             } else {
diff --git a/src/Filesystem/FileSystemProcessor.php b/src/Filesystem/FileSystemProcessor.php
index 88b3a22..b883ea0 100644
--- a/src/Filesystem/FileSystemProcessor.php
+++ b/src/Filesystem/FileSystemProcessor.php
@@ -85,7 +85,8 @@ public function getOldestTimestamp() {
 
     // Round a timestamp to its respective file timestamp
     protected function roundTimestamp($timestamp) {
-        $timestamp -= $timestamp % $this->second_interval;
+        //$timestamp -= $timestamp % $this->second_interval;
+        $timestamp -= $timestamp %  3600;
         return $timestamp;
     }
 
@@ -98,7 +99,7 @@ public function getPreviousTimestampFromTimestamp($timestamp) {
                 if ($this->out_fs->has($filename)) {
                     return $timestamp;
                 }
-                $timestamp -= $this->second_interval;
+                $timestamp -= 60*60;
             }
         }
         return false;
@@ -108,7 +109,7 @@ public function getNextTimestampForTimestamp($timestamp) {
         $timestamp = $this->roundTimestamp($timestamp);
         $now = time();
         while($timestamp < $now) {
-            $timestamp += $this->second_interval;
+            $timestamp += 60*60;
             $filename = $this->roundTimestamp($timestamp);
             if ($this->out_fs->has($filename)) {
                 return $timestamp;
diff --git a/src/Helpers/JSONLDWriter.php b/src/Helpers/JSONLDWriter.php
index 2d5dee4..60dd5d2 100644
--- a/src/Helpers/JSONLDWriter.php
+++ b/src/Helpers/JSONLDWriter.php
@@ -37,9 +37,9 @@ public function addTriples($triples) {
                 } else {
                     $obj = ["@id" => $triple["object"]];
                 }
-                if (substr($obj, 0, 1) === '"') {
+                /*if (substr($obj, 0, 1) === '"') {
                     $obj = Util::getLiteralValue($obj);
-                }
+                }*/
                 array_push($this->graph[$triple["graph"]]["@graph"], ["@id" => $triple["subject"], $pred => $obj]);
             }
         }