License: switch to CC-BY-NC-4.0 to inherit DSBench non-commercial dataset terms

README.md

@@ -1,5 +1,5 @@
 ---
-license: cc-by-4.0
+license: cc-by-nc-4.0
 task_categories:
   - tabular-classification
   - tabular-regression
@@ -185,7 +185,7 @@ The `True column` column is the answer the clarification oracle returns when an
 
 ## License
 
-The contents of this repository (prompts, manifests, task index, decoy recipes) are released under **CC-BY-4.0**. The `task.txt` files are factual paraphrases of publicly available Kaggle competition descriptions; the `task_ambig.txt` files, the decoy-generation recipes in `_manifest.json.ambig_recipe`, and the per-task diagnostics are original contributions.
+The contents of this repository (prompts, manifests, task index, decoy recipes) are released under **CC-BY-NC-4.0**, inheriting the non-commercial research-use restriction from the upstream DSBench dataset terms (DSBench code is MIT). The `task.txt` files are factual paraphrases of publicly available Kaggle competition descriptions; the `task_ambig.txt` files, the decoy-generation recipes in `_manifest.json.ambig_recipe`, and the per-task diagnostics are original contributions.
 
 The per-task `eval.py` evaluators are **redistributed unchanged from [DSBench](https://github.com/LiqiangJing/DSBench)** (Jing et al., 2024) so that grading remains bit-identical to upstream. Some still contain inline comments in Chinese — these are upstream artefacts.