conll2003 incorrect label explanation
{'login': 'BramVanroy', 'id': 2779410, 'node_id': 'MDQ6VXNlcjI3Nzk0MTA=', 'avatar_url': 'https://avatars.githubusercontent.com/u/2779410?v=4', 'gravatar_id': '', 'url': 'https://api.github.com/users/BramVanroy', 'html_url': 'https://github.com/BramVanroy', 'followers_url': 'https://api.github.com/users/BramVanroy/followers', 'following_url': 'https://api.github.com/users/BramVanroy/following{/other_user}', 'gists_url': 'https://api.github.com/users/BramVanroy/gists{/gist_id}', 'starred_url': 'https://api.github.com/users/BramVanroy/starred{/owner}{/repo}', 'subscriptions_url': 'https://api.github.com/users/BramVanroy/subscriptions', 'organizations_url': 'https://api.github.com/users/BramVanroy/orgs', 'repos_url': 'https://api.github.com/users/BramVanroy/repos', 'events_url': 'https://api.github.com/users/BramVanroy/events{/privacy}', 'received_events_url': 'https://api.github.com/users/BramVanroy/received_events', 'type': 'User', 'site_admin': False}
[{'id': 1935892857, 'node_id': 'MDU6TGFiZWwxOTM1ODkyODU3', 'url': 'https://api.github.com/repos/huggingface/datasets/labels/bug', 'name': 'bug', 'color': 'd73a4a', 'default': True, 'description': "Something isn't working"}]
[]
["Hi @BramVanroy,\r\n\r\nsince these fields are of type `ClassLabel` (you can check this with `dset.features`), you can inspect the possible values with:\r\n```python\r\ndset.features[field_name].feature.names  # .feature because it's a sequence of labels\r\n```\r\n\r\nand to find the mapping between names and integers, use: \r\n```python\r\ndset.features[field_name].feature.int2str(value_or_values_list)  # map integer value to string value\r\n# or\r\ndset.features[field_name].feature.str2int(value_or_values_list)  # map string value to integer value\r\n```\r\n\r\n"]
In the [conll2003](https://huggingface.co/datasets/conll2003#data-fields) README, the labels are described as follows

> - `id`: a `string` feature.
> - `tokens`: a `list` of `string` features.
> - `pos_tags`: a `list` of classification labels, with possible values including `"` (0), `''` (1), `#` (2), `$` (3), `(` (4).
> - `chunk_tags`: a `list` of classification labels, with possible values including `O` (0), `B-ADJP` (1), `I-ADJP` (2), `B-ADVP` (3), `I-ADVP` (4).
> - `ner_tags`: a `list` of classification labels, with possible values including `O` (0), `B-PER` (1), `I-PER` (2), `B-ORG` (3), `I-ORG` (4) `B-LOC` (5), `I-LOC` (6) `B-MISC` (7), `I-MISC` (8).

First of all, it would be great if we can get a list of ALL possible pos_tags.

Second, the chunk tags labels cannot be correct. The description says the values go from 0 to 4 whereas the data shows values from at least 11 to 21 and 0.

EDIT: not really a bug, sorry for mistagging.
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