{"default": {"features": {"values": {"_type": "Value"}, "property_source_doc_id": {"_type": "Value"}, "origins": {"_type": "Value"}}, "splits": {"train": {"name": "train", "dataset_name": "mp20"}, "validation": {"name": "validation", "dataset_name": "mp20"}, "test": {"name": "test", "dataset_name": "mp20"}}}}