# Dataset provenance

This document records how the O.W.L. & N.E.W.T. Bench v0.4 questions were
actually produced. It distinguishes sources of fictional facts from related
datasets that were inspected but not imported.

## Short version

The benchmark was written specifically for this project with AI assistance. It
was not copied from an existing Harry Potter question-answer dataset.

- The first question set was drafted from the model's existing knowledge.
- Later, harder candidate facts were researched primarily with
  [The Harry Potter Lexicon](https://www.hp-lexicon.org/), especially its
  chapter guides and its character, object and event indexes.
- Those facts were turned into new short-answer questions and answer aliases.
- Each retained item names the relevant novel and chapter as its canonical
  source.
- Candidate pools were tested against several models. Apparent misses were
  inspected, ambiguous items were removed, and the final paper was assembled
  from the surviving candidates.

The `reviewed` value in the JSONL records means that an item passed this project
curation process. It does **not** mean that the complete dataset received
independent human or scholarly verification.

## Construction history

The 30 O.W.L. questions and 45 N.E.W.T. questions have different histories.

Twenty-eight of the final O.W.L. questions were drafted in the initial
AI-assisted question set, before the sourced deep-lore research pass. Two were
added during the v0.4 rebuild. They were promoted into the O.W.L. paper because
the first supposedly difficult set had become too easy for the tested models.

The final N.E.W.T. paper was selected from several experimental candidate
pools:

| Candidate pool | Questions retained in v0.4 |
| --- | ---: |
| Ultra, chapter-level micro-details | 35 |
| Deep | 4 |
| Frontier/Fable calibration | 3 |
| Initial v0.4 calibration | 2 |
| Multi-fact synthesis | 1 |
| **Total** | **45** |

The research pass used chapter-level details, minor names, exact objects,
prices and ordered recall. Final question wording first appeared in the project
dataset and calibration files rather than being imported as question text from
the reference pages.

## Research references

The Harry Potter Lexicon was the main web reference used to discover and check
candidate facts. Examples that directly informed retained items include:

- [Harry Potter's Gifts](https://www.hp-lexicon.org/thing/harry-potters-gifts/),
  including the Broomstick Servicing Kit details;
- [PS3: The Letters from No One](https://www.hp-lexicon.org/source/the-harry-potter-novels/ps/ps3/),
  including the Railview Hotel and Hogwarts-letter details;
- [GF15: Beauxbatons and Durmstrang](https://www.hp-lexicon.org/source/the-harry-potter-novels/gf/gf15/),
  used to check the Owlery breed detail;
- [Potterwatch](https://www.hp-lexicon.org/thing/potterwatch/), used to check the
  short-lived `Rodent` code name;
- [Cattermole family](https://www.hp-lexicon.org/character/cattermole-family/),
  used during correction of the children's names before the final item was
  frozen.

Additional Lexicon chapter, character and object pages appeared throughout the
research. Search results also surfaced Harry Potter Wiki/Fandom, public trivia
pages, discussion forums and unofficial book files. The project did not keep a
reliable item-to-URL ledger for those incidental results, so this repository
does not pretend that they are one-to-one sources. The canonical locator stored
with every released item is the corresponding novel and chapter.

## Related datasets, not source datasets

The following resources were reviewed while checking whether a comparable
benchmark already existed:

- [HP-Quiz](https://huggingface.co/datasets/cross-ling-know/HarryPotter-Quiz)
- [HarryPotterQA](https://huggingface.co/datasets/vapit/HarryPotterQA)

Neither dataset was downloaded, transformed or used to populate this
benchmark. They should be cited as related work, not as the origin of its
questions.

## Rights and attribution

The seven Harry Potter novels by J. K. Rowling are the canonical source of the
underlying fictional facts. The Harry Potter Lexicon deserves credit as the
principal research and fact-checking reference used during the harder question
passes.

The repository code is MIT licensed. To the extent that the project holds
rights in the benchmark's original wording, answer aliases, selection and
arrangement, those contributions are also offered under the repository's MIT
license. That license does not grant rights in the novels, The Harry Potter
Lexicon, character names, marks or the underlying fictional universe.

This is an independent, unofficial fan research project. It is not affiliated
with, endorsed by or sponsored by J. K. Rowling, Warner Bros. or Wizarding
World.