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README.md

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 ## Dataset Description
 
-Behavior-focused text covering reasoning, planning, AI, games, general content, and high-quality rewriting. This repository is part of the [K2 Horizon collection](https://huggingface.co/collections/IFM/k2-horizon).
+Behavior-focused text covering reasoning, planning, data science, games, general content, and format rewriting. This repository is part of the [K2 Horizon collection](https://huggingface.co/collections/IFM/k2-horizon).
 
-The release is organized as one Hugging Face dataset per subset. Every subset has a `train` split backed by Parquet shards, which supports Dataset Viewer inspection and streaming access.
+The repository is organized into multiple subsets. Every subset has a `train` split backed by Parquet shards, which supports Dataset Viewer inspection and streaming access.
 
 ## K2 Horizon Dataset Series