Update README.md

README.md

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-license: cc-by-nc-sa-4.0
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+---
+license: cc-by-nc-sa-4.0
+---
+# PIO Dataset Card
+
+## Dataset Details
+This dataset contains the dataset for NeurIPS D&B submission: Point-It-Out: Benchmarking Embodied Reasoning for Vision Language Models in Precise Visual Grounding. It includes all the data for S1, S2 and S3 defined in the paper: 
+- 260+ source images
+- 550 + questions
+- Human annotated masks (for S1 ans S2)
+- class information and subclass information
+
+
+
+## Dataset Structure
+- `images_s1s2` folder
+  - Contains the raw images for s1 and s2
+- `images_s3` folder
+  - Contains the raw images for s3
+- `s1s2.json'
+  - List of data points include dict_keys(['polygon', 'image_path', 'height', 'width', 'lang', 'dataset_name', 's1_or_s2', 'subclasses'])
+- 's3.json'
+  - A dict, the key is source image, and value is List[str] including multiple questions regarding this image
+
+
+
+## Citation
+None, paper in submission