diff --git a/dataset_builders/pie/sciarg/sciarg.py b/dataset_builders/pie/sciarg/sciarg.py
index 002a8fff..ea4ed7a0 100644
--- a/dataset_builders/pie/sciarg/sciarg.py
+++ b/dataset_builders/pie/sciarg/sciarg.py
@@ -35,7 +35,7 @@ def get_common_converter_pipeline_steps(target_document_type: type[Document]) ->
         trim_adus=TextSpanTrimmer(layer="labeled_spans"),
         sort_symmetric_relation_arguments=RelationArgumentSorter(
             relation_layer="binary_relations",
-            label_whitelist=["parts_of_same", "semantically_same"],
+            label_whitelist=["parts_of_same", "semantically_same", "contradicts"],
         ),
     )
 
diff --git a/tests/dataset_builders/pie/sciarg/test_sciarg.py b/tests/dataset_builders/pie/sciarg/test_sciarg.py
index 3a3ad8e0..2a1b1218 100644
--- a/tests/dataset_builders/pie/sciarg/test_sciarg.py
+++ b/tests/dataset_builders/pie/sciarg/test_sciarg.py
@@ -411,12 +411,12 @@ def test_converted_document(converted_document, dataset_variant):
                     ),
                 ),
                 (
-                    ("This approach is not commonly applied", "background_claim"),
-                    "contradicts",
                     (
                         "artists will edit the geometry of characters in the rest pose to fine-tune animations",
                         "background_claim",
                     ),
+                    "contradicts",
+                    ("This approach is not commonly applied", "background_claim"),
                 ),
                 (
                     (