diff --git a/.gitattributes b/.gitattributes
index 60b77b54748b2e660dbb0ebac8e29f9e564fbbce..c55ffd88328ae660699f893553d4e176238e9234 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -342,3 +342,4 @@ data/AB/1950/05_annotatedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1976/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1977/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1975/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
+data/AB/1981/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
diff --git a/.renku/workflow/a46ff1d6b58f4b2e8bd28858fa3c4bf7_python.cwl b/.renku/workflow/a46ff1d6b58f4b2e8bd28858fa3c4bf7_python.cwl
new file mode 100644
index 0000000000000000000000000000000000000000..bcaee66ef2e8a7f51b3e8a2497940024f1c898ea
--- /dev/null
+++ b/.renku/workflow/a46ff1d6b58f4b2e8bd28858fa3c4bf7_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/1981/02_extractedxml.tar.gz
+    inputBinding:
+      position: 2
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_3:
+    default: data/AB/1981/04_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/1981
+    writable: true
+successCodes: []
+temporaryFailCodes: []
diff --git a/data/AB/1981/04_correctedxml.tar.gz b/data/AB/1981/04_correctedxml.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..998ec0296f498a548e2c532f082be37ebd02699a
--- /dev/null
+++ b/data/AB/1981/04_correctedxml.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2b6acbcb399440dbace4e3787e018f54266d4fe57849f16e4a196974f8eb0d8d
+size 24342652