not go back.
{'w107': 'unknown', 'w6': 'Negative', 'w181': 'unknown', 'w65': 'unknown', 'w33': 'unknown'}
{'w38': 'unknown', 'w2': 'unknown', 'w35': 'unknown', 'w4': 'unknown', 'w103': 'unknown'}
{'restaurant_id': 33802, 'restaurant_name': 'Vergina', 'cuisine': 'italian', 'price_tier': 'low', 'dining_style': 'Casual Dining', 'dress_code': 'Smart Casual', 'parking': 'Private Lot', 'region': 'south', 'rating_ambiance': 3, 'rating_food': 1, 'rating_noise': 2, 'rating_service': 2, 'rating_overall': 1}