Datasets:

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Error code:   DatasetGenerationError
Exception:    CastError
Message:      Couldn't cast
source_text: string
language: string
template_id: int64
entities: list<item: struct<value: string, label: string, start: int64, end: int64>>
  child 0, item: struct<value: string, label: string, start: int64, end: int64>
      child 0, value: string
      child 1, label: string
      child 2, start: int64
      child 3, end: int64
tokens: list<item: string>
  child 0, item: string
bio_labels: list<item: string>
  child 0, item: string
meta: struct<contributor: string, seed: int64, generator_version: string, synthetic: bool, new_template: b (... 4 chars omitted)
  child 0, contributor: string
  child 1, seed: int64
  child 2, generator_version: string
  child 3, synthetic: bool
  child 4, new_template: bool
to
{'source_text': Value('string'), 'language': Value('string'), 'tokens': List(Value('string')), 'bio_labels': List(Value('string')), 'entities': List({'value': Value('string'), 'label': Value('string'), 'start': Value('int64'), 'end': Value('int64')}), 'meta': {'contributor': Value('string'), 'seed': Value('int64'), 'generator_version': Value('string'), 'synthetic': Value('bool')}}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1816, in _prepare_split_single
                  for key, table in generator:
                                    ^^^^^^^^^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 613, in wrapped
                  for item in generator(*args, **kwargs):
                              ~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2369, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2297, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              source_text: string
              language: string
              template_id: int64
              entities: list<item: struct<value: string, label: string, start: int64, end: int64>>
                child 0, item: struct<value: string, label: string, start: int64, end: int64>
                    child 0, value: string
                    child 1, label: string
                    child 2, start: int64
                    child 3, end: int64
              tokens: list<item: string>
                child 0, item: string
              bio_labels: list<item: string>
                child 0, item: string
              meta: struct<contributor: string, seed: int64, generator_version: string, synthetic: bool, new_template: b (... 4 chars omitted)
                child 0, contributor: string
                child 1, seed: int64
                child 2, generator_version: string
                child 3, synthetic: bool
                child 4, new_template: bool
              to
              {'source_text': Value('string'), 'language': Value('string'), 'tokens': List(Value('string')), 'bio_labels': List(Value('string')), 'entities': List({'value': Value('string'), 'label': Value('string'), 'start': Value('int64'), 'end': Value('int64')}), 'meta': {'contributor': Value('string'), 'seed': Value('int64'), 'generator_version': Value('string'), 'synthetic': Value('bool')}}
              because column names don't match
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1683, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1869, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset