Update README.md

README.md

@@ -59,7 +59,37 @@ In this release, we present
 [**VBVR-Bench-Data**](https://huggingface.co/Video-Reason/VBVR-Bench-Data) and 
 [**VBVR-Bench-Leaderboard**](https://huggingface.co/Video-Reason/VBVR-Bench-Leaderboard).
 
+## Data Structure
+The dataset is organized by domain and task generator. For example:
 
+```bash
+In-Domain_50/
+  G-31_directed_graph_navigation_data-generator/
+    00000/
+      first_frame.png
+      final_frame.png
+      ground_truth.mp4
+      prompt.txt
+```
+Structure Description
+
+- In-Domain_50/Out-of-Domain_50: 
+Evaluation splits indicating whether samples belong to in-domain or out-of-domain settings.
+
+- G-XXX_task-name_data-generator: 
+A specific reasoning task category and its corresponding data generator.
+
+- 00000-00004: 
+Individual sample instances.
+
+Each sample directory contains
+- first_frame.png: The initial frame of the video
+
+- final_frame.png: The final frame
+
+- ground_truth.mp4: The full video sequence
+
+- prompt.txt: The textual reasoning question or instruction
 
 ## 🖊️ Citation