diff --git a/yaml/duplex_commit.yaml b/yaml/duplex_commit.yaml
index 11c00bb..6c009da 100644
--- a/yaml/duplex_commit.yaml
+++ b/yaml/duplex_commit.yaml
@@ -1,29 +1,6 @@
 src: ifc/duplex.ifc
 
 operations:
-  - name: Extract
-    command: extract
-    input: ifc/duplex.ifc
-    output: ifc/duplex_extract.ifc
-    type: IfcSpace
-    id: A102
-  - name: Modify
-    command: modify
-    tag: move table
-    input: ifc/duplex_extract.ifc
-    output: ifc/duplex_modified.ifc
-    element: "168381"
-    x: 2
-  - name: Merge
-    command: merge
-    tag: merge table displacement
-    base: ifc/duplex.ifc
-    space: A102
-    part: ifc/duplex_modified.ifc
-    output: ifc/duplex_merge.ifc
-  - name: WriteHistory
-    command: history
-    write_psets: true
   - name: ReadHistory
     command: history
     input: ifc/duplex_merge.ifc