Fix file path handling in dataset loading script

demo.py

@@ -15,8 +15,8 @@ class Demo(datasets.GeneratorBasedBuilder):
         )
 
     def _split_generators(self, dl_manager):
-        # Use the current directory where demo.py is located
-        base_path = os.path.dirname(os.path.abspath(__file__))
+        # Get the base path from the dataset repository
+        base_path = dl_manager.download_and_extract(".")
         parquet_path = os.path.join(base_path, "visionreasoner_dataset.parquet")
         
         return [