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The dataset generation failed
Error code:   DatasetGenerationError
Exception:    TypeError
Message:      Couldn't cast array of type list<item: string> to null
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1827, 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 2378, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2312, in cast_table_to_schema
                  cast_array_to_feature(
                  ~~~~~~~~~~~~~~~~~~~~~^
                      table[name] if name in table_column_names else pa.array([None] * len(table), type=schema.field(name).type),
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                      feature,
                      ^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 1861, in wrapper
                  return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
                                           ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2152, in cast_array_to_feature
                  return array_cast(
                      array,
                  ...<2 lines>...
                      allow_decimal_to_str=allow_decimal_to_str,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 1863, in wrapper
                  return func(array, *args, **kwargs)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2016, in array_cast
                  raise TypeError(f"Couldn't cast array of type {_short_str(array.type)} to {_short_str(pa_type)}")
              TypeError: Couldn't cast array of type list<item: string> to null
              
              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 1694, 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 1880, 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

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input
string
context
string
answers
list
length
int64
dataset
string
language
string
all_classes
null
_id
string
chunks
list
cut_prob
list
parallel_degree
int64
What is Saltram's living situation?
"Transcribed from the 1915 Martin Secker edition by David Price, email\nccx074@pglaf.org\n\n (...TRUNCATED)
[ "He is a guest in the home of the Mulvilles." ]
22,692
narrativeqa
en
null
341d214a2c377691bf20e5a30b8f7979696bd19141ad9c9f
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.349609375,0.015869140625,0.053466796875,0.04150390625,0.000560760498046875,(...TRUNCATED)
15
Why does Ann not return Mary's feelings of affection?
"E-text prepared by Jonathan Ingram, Janet Blenkinship, and the Project\nGutenberg Online Distribute(...TRUNCATED)
[ "Because she is in unrequited love with someone else" ]
23,316
narrativeqa
en
null
26c6325283dece0b557e34cde9a5c57999ec5c68782e8194
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.337890625,0.0233154296875,0.08203125,0.15625,0.0028839111328125,0.000732421(...TRUNCATED)
35
Where does the witch live?
"Produced by Sue Asscher\n\n\n\n\n\n\n\n\n\nThe Witch of Atlas\n\n\nby\n\nPercy Bysshe Shelley\n\n\n(...TRUNCATED)
[ "The Atlas Mountains" ]
5,397
narrativeqa
en
null
5b8d6fdd30a297e508ebb484f172ca5bce8d31b340eb3506
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.2578125,0.119140625,0.000732421875,0.0029296875,0.047119140625,0.0001735687(...TRUNCATED)
5
What was the purpose of Crito's visit?
"This etext was prepared by Sue Asscher <asschers@aia.net.au>\n\n\n\n\n\nCRITO\n\nby Plato\n\n\n\n\n(...TRUNCATED)
[ "To smuggle Socrates out of prison and into a life of exile." ]
6,592
narrativeqa
en
null
68fc4dee839213b5259d41718909195c2f5274665bc18036
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.267578125,0.287109375,0.005828857421875,0.00506591796875,0.328125,0.0002412(...TRUNCATED)
4
Why didn't Baron Henry just kill Otto instead of cutting his hand off?
"Produced by Angus Christian\n\n\n\n\n\nOTTO OF THE SILVER HAND\n\nBy Howard Pyle\n\n\n\n\n\nCONTENT(...TRUNCATED)
[ "Otto was so young." ]
27,745
narrativeqa
en
null
36232c9c63d19d282643657b3da5b688cb14e3b44009c494
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.2490234375,0.125,0.003173828125,0.10107421875,0.00009632110595703125,0.0000(...TRUNCATED)
19
How long had Mortimer Trefinnis' sister been dead when the doctor examined the body?
"Produced by David Brannan. HTML version by Al Haines.\n\n\n\n\n\n\n\n\n\nThe Adventure of the Devi(...TRUNCATED)
[ "Six hours." ]
10,020
narrativeqa
en
null
0bf1995158cbf08134d5dc15475c27f38b3ab5441c422419
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.296875,0.26953125,0.00116729736328125,0.0023956298828125,0.0078125,0.000017(...TRUNCATED)
5
With whom does the entertainers' manager have an affair?
"The Seventh Seal\n<b> \n</b>The night had brought little relief from the heat, and at dawn a hot gu(...TRUNCATED)
[ "Lisa, the blacksmith's wife." ]
18,054
narrativeqa
en
null
9fbcbb5460066a68460ba92626c25371e0a1ff65b3bd5e84
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875],[0.48828125,0.00872802734375,0.00183868408203125,0.0000514984130859375,8.642(...TRUNCATED)
9
Who is the first person that falls under Vigo's spell?
"\t\t\t\t\t\tGhostbusters II\n\n\t\t\t\t\t\t\tby\n\t\t\t\t\t\tHarold Ramis\n\t\t\t\t\t\t\tand\n\t\t\(...TRUNCATED)
[ "Dr. Janosz Poha" ]
25,090
narrativeqa
en
null
f9cfda8abcc78f9e2f492d4f58ee4996430e9a8911e29726
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.38671875,0.000457763671875,0.00010251998901367188,0.0000820159912109375,0.0(...TRUNCATED)
18
What nationality is Ruth Anvoy?
"Transcribed from the 1915 Martin Secker edition by David Price, email\nccx074@pglaf.org\n\n (...TRUNCATED)
[ "She is an American." ]
22,692
narrativeqa
en
null
58b8a46c20c05540367b90490846c4f9808db630026b28d4
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.349609375,0.015869140625,0.053466796875,0.04150390625,0.000560760498046875,(...TRUNCATED)
15
Who did the Witch want to have reveal their own lies?
"Produced by Sue Asscher\n\n\n\n\n\n\n\n\n\nThe Witch of Atlas\n\n\nby\n\nPercy Bysshe Shelley\n\n\n(...TRUNCATED)
[ "The scribe." ]
5,403
narrativeqa
en
null
c89fd516348b68f96538948b052cb10d5b6f21bc441f5a55
["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED)
[[0.000072479248046875,0.2578125,0.119140625,0.000732421875,0.0029296875,0.047119140625,0.0001735687(...TRUNCATED)
5
End of preview.