["task_categories:summarization", "language:en", "size_categories:1K<n<10K", "format:parquet", "modality:text", "library:datasets", "library:pandas", "library:mlcroissant", "library:polars", "region:us"]
[{"name": "thread", "struct": [{"name": "subject", "dtype": "string"}, {"name": "messages", "list": [{"name": "timestamp", "dtype": "timestamp[s]"}, {"name": "from", "dtype": "string"}, {"name": "to", "sequence": "string"}, {"name": "body", "dtype": "string"}]}]}, {"name": "summary", "dtype": "string"}]