diff --git a/.gitattributes b/.gitattributes
index 6d12f4d90deabcb982d441db06191e3422f52f82..2a6a2f7c0073df51d163b2edd9b66b740a24ec88 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -147,3 +147,4 @@ data/AB/1946/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1947/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1948/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1949/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
+data/AB/1950/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
diff --git a/.renku/workflow/cc256567c0c64e8d85134af69c8b9380_python.cwl b/.renku/workflow/cc256567c0c64e8d85134af69c8b9380_python.cwl
new file mode 100644
index 0000000000000000000000000000000000000000..98ba9b5d207fa43aa4f118163a750459cc6af50d
--- /dev/null
+++ b/.renku/workflow/cc256567c0c64e8d85134af69c8b9380_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/1950/02_extractedxml.tar.gz
+    inputBinding:
+      position: 2
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_3:
+    default: data/AB/1950/04_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/1950
+    writable: true
+successCodes: []
+temporaryFailCodes: []
diff --git a/data/AB/1950/04_correctedxml.tar.gz b/data/AB/1950/04_correctedxml.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..0ae47fd9b71b4fe4938176dc5ca3d5430515cc68
--- /dev/null
+++ b/data/AB/1950/04_correctedxml.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:90f68d95bd67313cb486829f628eef33b20ccb6eff23f58687576fff8ad55b55
+size 9197912