Fast-forward fcbond -> nltk

.github/workflows/pkg_index.yml

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+name: Build and commit index.xml on package update
+
+on:
+  push:
+    branches:
+      - gh-pages
+    paths:
+      - 'packages/**'
+
+jobs:
+  build-index:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+
+      - name: Install dependencies
+        run: pip install nltk
+
+      - name: Install make
+        run: sudo apt-get update && sudo apt-get install -y make
+
+      - name: Build index.xml
+        run: make pkg_index
+
+      - name: Configure git
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+      - name: Commit and push index.xml
+        run: |
+          git add index.xml
+          git commit -m "Auto-build index.xml after package update" || echo "No changes to commit"
+          git push

CONTRIBUTING.md

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+# Contributing to nltk_data
+
+Thank you for your interest in contributing to [`nltk_data`](https://github.com/nltk/nltk_data)! This guide will help you add new data packages (corpora, taggers, models, etc.) and contribute improvements to existing ones.
+
+## Adding a New Data Package
+
+The `nltk_data` repository contains datasets and resources that can be downloaded by `nltk.downloader`. To add a new dataset or resource, please follow these steps:
+
+### 1. Fork and Clone the Repository
+
+First, fork the [`nltk_data`](https://github.com/nltk/nltk_data) repository to your own GitHub account. For help with forking, see the [GitHub documentation on forking a repository](https://docs.github.com/en/get-started/quickstart/fork-a-repo).
+
+Then, clone your fork locally:
+
+```bash
+git clone https://github.com/<your-github-username>/nltk_data.git
+cd nltk_data
+```
+
+### 2. Create a New Branch
+
+Create a branch for your dataset:
+
+```bash
+git checkout -b add-my-dataset
+```
+
+### 3. Add Your Data Package
+
+- Place your dataset in the appropriate directory (`corpora/`, `models/`, `tokenizers/`, etc.). If you are unsure, check the existing structure or open an issue for clarification.
+- If your dataset has a license, include the license file in the same directory. If the license is unknown or separate from the repository, please add a note in a `README` or `LICENSE` file within the dataset’s folder, and document this in your pull request.
+
+**Whenever you add a new data package, you must update [`DATASET-LICENSES.md`](DATASET-LICENSES.md) with the license information for your package.**
+
+You only need to update [`LICENSE-OVERVIEW.md`](LICENSE-OVERVIEW.md) if you are making changes to the repository’s overall licensing structure or guidance.
+
+### 4. Update Index Files
+
+- You do **not** need to manually update `index.xml`. This file is now rebuilt automatically by a GitHub Actions workflow after your changes are merged.
+- Any local changes you make to `index.xml` will be ignored and overwritten by the workflow.
+- Provide a short README or metadata file describing the package, its origin, and its license.
+
+### 5. Commit and Push Your Changes
+
+```bash
+git add <your new files>
+git commit -m "Add <name> dataset to nltk_data"
+git push origin add-my-dataset
+```
+
+### 6. Create a Pull Request
+
+Open a pull request from your branch to the `master` branch of `nltk/nltk_data`. For help, see the [GitHub documentation on creating a pull request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request).
+
+In your pull request, please include:
+- A description of the dataset and its purpose.
+- Any relevant licensing information or restrictions.
+- Instructions for any special installation or usage requirements.
+
+### 7. Respond to Feedback
+
+- Be responsive to comments and requested changes.
+- If your dataset cannot be accepted (e.g., due to licensing issues), we will let you know in the pull request.
+
+## General Guidelines
+
+- **Licensing**: Please ensure you have the right to redistribute any data you submit, and document the license clearly. If the license is unknown, state this explicitly in your pull request.
+- **No Large Files**: If your package is extremely large, consider hosting it elsewhere and providing an index/manifest, or open an issue to discuss options.
+- **No Executable Files**: Only data, not code, should be included unless a script is essential for using the dataset.
+
+## Additional Resources
+
+- [GitHub Docs: Fork a repo](https://docs.github.com/en/get-started/quickstart/fork-a-repo)
+- [GitHub Docs: Branches](https://docs.github.com/en/get-started/quickstart/github-glossary#branch)
+- [GitHub Docs: Pull Requests](https://docs.github.com/en/pull-requests)
+
+If you have questions or need help, please open an issue or join the [nltk-dev mailing list](https://groups.google.com/forum/#!forum/nltk-dev).
+
+---
+
+Thank you for helping improve NLTK’s data resources!

DATASET-LICENSES.md

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+# DATASET-LICENSES.md
+
+This document provides a grouped summary of licenses for all data packages present in the [`nltk_data`](https://github.com/nltk/nltk_data) repository, based on the current `index.xml` file. Each package is listed by its exact `id` and `name`, and grouped by license type as declared in the metadata.
+
+> **Disclaimer:**  
+> This information is provided as a convenience to users and is not legal advice.  
+> **You must verify the license for each dataset with the original source if your use case is sensitive (especially for commercial or redistributive use).**  
+> Licenses or terms can change over time; this file may become outdated if not maintained.
+
+---
+
+## MIT License
+
+- averaged_perceptron_tagger — Averaged Perceptron Tagger
+- averaged_perceptron_tagger_eng — Averaged Perceptron Tagger (JSON)
+- averaged_perceptron_tagger_ru — Averaged Perceptron Tagger (Russian)
+- averaged_perceptron_tagger_rus — Averaged Perceptron Tagger (Russian)
+- vader_lexicon — VADER Sentiment Lexicon
+
+---
+
+## Creative Commons Licenses
+
+### Creative Commons Attribution 4.0 International
+
+- opinion_lexicon — Opinion Lexicon
+- product_reviews_1 — Product Reviews (5 Products)
+- product_reviews_2 — Product Reviews (9 Products)
+- pros_cons — Pros and Cons
+- subjectivity — Subjectivity Dataset v1.0
+
+### Creative Commons Attribution 3.0 Unported License
+
+- framenet_v17 — FrameNet 1.7
+
+### Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States
+
+- universal_treebanks_v20 — Universal Treebanks Version 2.0
+
+### Creative Commons Attribution 3.0 (unspecified region)
+
+- sentiwordnet — SentiWordNet
+
+### CC0 1.0 Universal
+
+- panlex_swadesh — PanLex Swadesh Corpora
+
+### CC By SA 3.0 (Wiktionary) & UBY 1.0 (UBY)
+
+- extended_omw — Extended Open Multilingual WordNet
+
+---
+
+## GNU Licenses
+
+### GNU General Public License
+
+- pl196x — Polish language of the XX century sixties
+
+### GNU Free Documentation License
+
+- swadesh — Swadesh Wordlists
+- gazetteers — Gazetteer Lists (note: for some files only; others may be public domain)
+
+### GNU Lesser General Public License
+
+- nonbreaking_prefixes — Non-Breaking Prefixes (Moses Decoder)
+
+---
+
+## Public Domain
+
+- genesis — Genesis Corpus
+- gutenberg — Project Gutenberg Selections
+- inaugural — C-Span Inaugural Address Corpus
+- shakespeare — Shakespeare XML Corpus Sample
+- udhr — Universal Declaration of Human Rights Corpus
+- udhr2 — Universal Declaration of Human Rights Corpus (Unicode Version)
+- words — Word Lists
+
+---
+
+## “Distributed with Permission” / “May be used with Permission” / “Freely Redistributable”
+
+> **Warning:**  
+> These are not standard open licenses. Terms may prohibit redistribution, modification, or commercial use.  
+> **You must consult the upstream source for the actual terms and whether permission applies to your use case.**
+
+- alpino — Alpino Dutch Treebank
+- indian — Indian Language POS-Tagged Corpus
+- lin_thesaurus — Lin's Dependency Thesaurus
+- mac_morpho — MAC-MORPHO: Brazilian Portuguese news text with part-of-speech tags
+- paradigms — Paradigm Corpus
+- nombank.1.0 — NomBank Corpus 1.0
+- propbank — Proposition Bank Corpus 1.0
+- senseval — SENSEVAL 2 Corpus: Sense Tagged Text
+- verbnet — VerbNet Lexicon, Version 2.1
+- verbnet3 — VerbNet Lexicon, Version 3.3
+- maxent_treebank_pos_tagger — Treebank Part of Speech Tagger (Maximum entropy)
+- maxent_treebank_pos_tagger_tab — Treebank Part of Speech Tagger (Maximum entropy)
+- maxent_ne_chunker — ACE Named Entity Chunker (Maximum entropy)
+- maxent_ne_chunker_tab — ACE Named Entity Chunker (Maximum entropy)
+- pil — The Patient Information Leaflet (PIL) Corpus
+- pe08 — Cross-Framework and Cross-Domain Parser Evaluation Shared Task
+- kimmo — PC-KIMMO Data Files
+- jeita — JEITA Public Morphologically Tagged Corpus
+- knbc — KNB Corpus (Annotated blog corpus)
+
+---
+
+## “Non-commercial Use Only” / Educational Use
+
+- brown — Brown Corpus
+- brown_tei — Brown Corpus (TEI XML Version)
+- framenet_v15 — FrameNet 1.5
+- floresta — Portuguese Treebank
+- masc_tagged — MASC Tagged Corpus
+- nps_chat — NPS Chat
+
+---
+
+## “See LICENSE Files” (Aggregated/Mixed Licensing)
+
+> **Warning:**  
+> These packages include files from multiple sources, each with their own license. See LICENSE files inside the package and verify terms for your use case.
+
+- omw — Open Multilingual Wordnet
+- omw-1.4 — Open Multilingual Wordnet
+
+---
+
+## Special Cases, Custom, or Unique Licenses
+
+- bcp47 — BCP-47 Language Tags ("IETF Trust and Unicode Inc."; custom)
+- wordnet — WordNet ("Permission to use, copy, modify and distribute this software and database and its documentation for any purpose and without fee or royalty")
+- wordnet31 — Wordnet 3.1 (same as above)
+- wordnet2021 / wordnet2022 / english_wordnet — Open English Wordnet (combines WordNet License and Creative Commons Attribution)
+- twitter_samples — Twitter Samples ("Must be used subject to Twitter Developer Agreement")
+- switchboard — Switchboard Corpus Sample ("Permission is granted for use of this material in accordance with the Open Content License")
+- dependency_treebank — Dependency Parsed Treebank (fragment of Penn Treebank; non-commercial, no redistribution)
+- ptb — Penn Treebank (stub for full corpus)
+- treebank — Penn Treebank Sample (fragment; non-commercial, no redistribution)
+- conll2000 — CONLL 2000 Chunking Corpus (research use only)
+- conll2002 — CONLL 2002 Named Entity Recognition Corpus (see website)
+- conll2007 — Dependency Treebanks from CoNLL 2007 (Catalan and Basque Subset, see website)
+- ieer — NIST IE-ER DATA SAMPLE (see website)
+- reuters — Reuters-21578 benchmark corpus, ApteMod version (Reuters Ltd. copyright)
+- timit — TIMIT Corpus Sample (Creative Commons Attribution-NonCommercial-ShareAlike 3.0)
+
+---
+
+## Unclarified, Unknown, Ambiguous, or Citation-Only
+
+The following packages have:  
+- No `license` attribute  
+- An empty or ambiguous value  
+- A citation request instead of a license  
+- Or otherwise ambiguous status
+
+> **Warning:**  
+> These packages lack open, standard, or clearly documented licenses.  
+> Citation requests do **not** constitute a license.  
+> Despite long-standing and ongoing efforts (see [nltk_data issue #241](https://github.com/nltk/nltk_data/issues/241) and related discussions), clarification has not been possible for these cases.  
+> **If you need to use any of these for commercial or redistributive purposes, consult a qualified legal professional.**
+
+- abc — Australian Broadcasting Commission 2006
+- basque_grammars — Grammars for Basque
+- biocreative_ppi — BioCreAtIvE (Critical Assessment of Information Extraction Systems in Biology)
+- bllip_wsj_no_aux — BLLIP Parser: WSJ Model
+- book_grammars — Grammars from NLTK Book
+- cess_cat — CESS-CAT Treebank (citation requested, not a license)
+- cess_esp — CESS-ESP Treebank (citation requested, not a license)
+- chat80 — Chat-80 Data Files
+- city_database — City Database
+- cmudict — The Carnegie Mellon Pronouncing Dictionary (0.6)
+- comparative_sentences — Comparative Sentence Dataset (ambiguous license)
+- comtrans — ComTrans Corpus Sample
+- dolch — Dolch Word List
+- europarl_raw — Sample European Parliament Proceedings Parallel Corpus
+- framenet_v15 — FrameNet 1.5 (non-commercial use only)
+- gazetteers — Gazetteer Lists (mixed per-file)
+- large_grammars — Large context-free and feature-based grammars
+- machado — Machado de Assis -- Obra Completa ("Public Domain", verify at source)
+- moses_sample — Moses Sample Models
+- mwa_ppdb — Monolingual word aligner (subset of Paraphrase Database)
+- names — Names Corpus, Version 1.3 (1994-03-29)
+- nonbreaking_prefixes — Non-Breaking Prefixes (empty license field)
+- punkt — Punkt Tokenizer Models (no license attribute)
+- punkt_tab — Punkt Tokenizer Models (no license attribute)
+- porter_test — Porter Stemmer Test Files
+- ppattach — Prepositional Phrase Attachment Corpus
+- problem_reports — Problem Report Corpus
+- qc — Experimental Data for Question Classification
+- rslp — RSLP Stemmer (Removedor de Sufixos da Lingua Portuguesa)
+- rte — PASCAL RTE Challenges 1, 2, and 3
+- sample_grammars — Sample Grammars
+- semcor — SemCor 3.0
+- sentence_polarity — Sentence Polarity Dataset v1.0 (ambiguous license)
+- smultron — SMULTRON Corpus Sample
+- snowball_data — Snowball Data
+- spanish_grammars — Grammars for Spanish
+- state_union — C-Span State of the Union Address Corpus
+- stopwords — Stopwords Corpus
+- tagsets — Help on Tagsets
+- tagsets_json — Help on Tagsets (JSON)
+- toolbox — Toolbox Sample Files
+- unicode_samples — Unicode Samples
+- webtext — Web Text Corpus
+- wmt15_eval — Evaluation data from WMT15
+- word2vec_sample — Word2Vec Sample
+- wordnet_ic — WordNet-InfoContent
+- ycoe — York-Toronto-Helsinki Parsed Corpus of Old English Prose
+
+---
+
+## Packages with Citation Requests Instead of Licenses
+
+> **Note:**  
+> These packages specifically request citation for use, but do not provide a license. Citation requests are not a license.
+
+- cess_cat — CESS-CAT Treebank
+- cess_esp — CESS-ESP Treebank
+
+---
+
+## Packages Citing Source Website or “See Website” for Terms
+
+> **Note:**  
+> These packages refer users to an external website for their licensing terms.
+
+- conll2002 — CONLL 2002 Named Entity Recognition Corpus
+- conll2007 — Dependency Treebanks from CoNLL 2007 (Catalan and Basque Subset)
+- ieer — NIST IE-ER DATA SAMPLE
+- reuters — The Reuters-21578 benchmark corpus, ApteMod version
+
+---
+
+## Maintenance
+
+**If you add, update, or remove any data packages, update this file accordingly to ensure continued transparency and compliance.**  
+If you find omissions, errors, or outdated information, please open an issue or pull request.
+
+---