diff --git a/.gitattributes b/.gitattributes
index 2375f91ff74bb7e299c8bd9d8c89abe0c2dfc0bc..91b644f026974a24d27a94b361076a0e3fe17622 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -153,3 +153,4 @@ data/AB/1952/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1953/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1954/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1955/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
+data/AB/1956/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
diff --git a/.renku/workflow/86ae3eff576740bbbf2f453f86cab1df_python.cwl b/.renku/workflow/86ae3eff576740bbbf2f453f86cab1df_python.cwl
new file mode 100644
index 0000000000000000000000000000000000000000..15f0c6b7175cffac935af295bb8878f14abb2df4
--- /dev/null
+++ b/.renku/workflow/86ae3eff576740bbbf2f453f86cab1df_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/1956/02_extractedxml.tar.gz
+    inputBinding:
+      position: 2
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_3:
+    default: data/AB/1956/04_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/1956
+    writable: true
+successCodes: []
+temporaryFailCodes: []
diff --git a/data/AB/1956/04_correctedxml.tar.gz b/data/AB/1956/04_correctedxml.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..a12342973ca571872c379e140f8bb32f178f8cb6
--- /dev/null
+++ b/data/AB/1956/04_correctedxml.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:65512feeb32c52a088d5d33231e8a381fa34753f5e51f5eae87b09dcf1f596ea
+size 8658234