diff --git a/.gitattributes b/.gitattributes
index 086aae8c1c35ebedac1544f1b4551471b0ae2a69..afe191f825a31a251cf7d8bbf50daa118527c838 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -49,3 +49,4 @@ data/AB/1900/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1901/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1902/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1903/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
+data/AB/1904/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
diff --git a/.renku/workflow/2cac04cb75b54807a9e55f602d71052a_python.cwl b/.renku/workflow/2cac04cb75b54807a9e55f602d71052a_python.cwl
new file mode 100644
index 0000000000000000000000000000000000000000..06472d7a14dd3257238ccf680bdfe42b3cf90e4b
--- /dev/null
+++ b/.renku/workflow/2cac04cb75b54807a9e55f602d71052a_python.cwl
@@ -0,0 +1,51 @@
+arguments: []
+baseCommand:
+- python
+class: CommandLineTool
+cwlVersion: v1.0
+hints: []
+inputs:
+  input_1:
+    default:
+      class: File
+      path: ../../src/python/run_correctxml.py
+    inputBinding:
+      position: 1
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_2:
+    default:
+      class: File
+      path: ../../data/AB/1904/02_extractedxml.tar.gz
+    inputBinding:
+      position: 2
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_3:
+    default: data/AB/1904/04_correctedxml.tar.gz
+    inputBinding:
+      position: 3
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: string
+outputs:
+  output_0:
+    outputBinding:
+      glob: $(inputs.input_3)
+    streamable: false
+    type: File
+permanentFailCodes: []
+requirements:
+- class: InlineJavascriptRequirement
+- class: InitialWorkDirRequirement
+  listing:
+  - entry: '$({"listing": [], "class": "Directory"})'
+    entryname: data/AB/1904
+    writable: true
+successCodes: []
+temporaryFailCodes: []
diff --git a/data/AB/1904/04_correctedxml.tar.gz b/data/AB/1904/04_correctedxml.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..2cbc171e4f5994d797d4899dc295c19263ec7d70
--- /dev/null
+++ b/data/AB/1904/04_correctedxml.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:67e889202db78659a393fc9d4eb67a5e39541072d3ad8a0e6f2c55702ca8e878
+size 3113350