diff --git a/.renku/workflow/615a3d7989fc44bab66bc86c87ddb74e_python.cwl b/.renku/workflow/615a3d7989fc44bab66bc86c87ddb74e_python.cwl
new file mode 100644
index 0000000000000000000000000000000000000000..e688f9043c20f99799602a358dba92d243ac8521
--- /dev/null
+++ b/.renku/workflow/615a3d7989fc44bab66bc86c87ddb74e_python.cwl
@@ -0,0 +1,59 @@
+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/1911/02_extractedxml.tar.gz
+    inputBinding:
+      position: 2
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_3:
+    default: data/AB/1911/04_correctedxml.tar.gz
+    inputBinding:
+      position: 3
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: string
+outputs:
+  output_0:
+    outputBinding:
+      glob: $(inputs.input_3)
+    streamable: false
+    type: File
+  output_1:
+    outputBinding:
+      glob: notebooks/RunningClasses.ipynb
+    streamable: false
+    type: File
+permanentFailCodes: []
+requirements:
+- class: InlineJavascriptRequirement
+- class: InitialWorkDirRequirement
+  listing:
+  - entry: '$({"listing": [], "class": "Directory"})'
+    entryname: notebooks
+    writable: true
+  - entry: '$({"listing": [], "class": "Directory"})'
+    entryname: data/AB/1911
+    writable: true
+successCodes: []
+temporaryFailCodes: []
diff --git a/data/AB/1911/04_correctedxml.tar.gz b/data/AB/1911/04_correctedxml.tar.gz
index 3eaaa2c95e7ad7641c3728d537ff02a070e31f34..3df7cae6a50b739871938e43c93921fda266b3d7 100644
--- a/data/AB/1911/04_correctedxml.tar.gz
+++ b/data/AB/1911/04_correctedxml.tar.gz
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ca74aebdf9ecb7f99ee6e57bf64ec455dceb2837059d922b5fa24413e0704156
-size 3467650
+oid sha256:db8b38882650f1a26237ff360a3110fc8d16d1d0785e8ece68677d445b65152e
+size 3464769
diff --git a/notebooks/RunningClasses.ipynb b/notebooks/RunningClasses.ipynb
index 637148989f77c05f5cb5b49a19d12e03cb420d2a..6cafd23c258f66bce821a4373e699664eb88559a 100755
--- a/notebooks/RunningClasses.ipynb
+++ b/notebooks/RunningClasses.ipynb
@@ -9,7 +9,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 101,
+   "execution_count": 102,
    "metadata": {},
    "outputs": [
     {