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dataset_builders/pie/conll2003/README.md

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+# PIE Dataset Card for "conll2003"
+
+This is a [PyTorch-IE](https://github.com/ChristophAlt/pytorch-ie) wrapper for the
+[CoNLL 2003 Huggingface dataset loading script](https://huggingface.co/datasets/conll2003).
+
+## Data Schema
+
+The document type for this dataset is `CoNLL2003Document` which defines the following data fields:
+
+- `text` (str)
+- `id` (str, optional)
+- `metadata` (dictionary, optional)
+
+and the following annotation layers:
+
+- `entities` (annotation type: `LabeledSpan`, target: `text`)
+
+See [here](https://github.com/ChristophAlt/pytorch-ie/blob/main/src/pytorch_ie/annotations.py) for the definitions of
+the annotation types.