[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify code snippets into one of the following categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']."}, {'role': 'user', 'content': "Identify the single most appropriate category to which the provided code belongs. Provide your response as a single category label without any additional information, commentary, or personal opinions.\\nPython Code:big_df = pd.DataFrame({'business_id':['ru_b_1', 'ru_b_2', 'ru_b_3', 'ru_b_4', 'ru_b_5',\n'ru_b_6', 'ru_b_7', 'ru_b_8', 'ru_b_9', 'ru_b_10', 'ru_b_5',\n'sim_biz_1_1', 'sim_biz_1_2', 'sim_biz_1_3', 'sim_biz_1_4', 'sim_biz_1_5',\n'sim_biz_1_6', 'sim_biz_1_7', 'sim_biz_1_8', 'sim_biz_1_9', 'sim_biz_1_10',\n'sim_biz_2_1', 'sim_biz_2_2', 'sim_biz_2_3', 'sim_biz_2_4', 'sim_biz_2_5',\n'sim_biz_2_6', 'sim_biz_2_7', 'sim_biz_2_8', 'sim_biz_2_9',  'sim_biz_2_10',\n'nsim_biz_1_1', 'nsim_biz_1_2', 'nsim_biz_1_3', 'nsim_biz_1_4', 'nsim_biz_1_5',\n'nsim_biz_1_6', 'nsim_biz_1_7', 'nsim_biz_1_8', 'nsim_biz_1_9', 'nsim_biz_1_10'],\n'stars_x': [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,\n5, 2, 5, 2, 5, 2, 5, 2, 5, 2,\n5, 2, 5, 2, 5, 2, 5, 2, 5, 2,\n5, 5, 5, 5, 5, 5, 5, 5, 5, 5],\n'user_id': ['reco_user', 'reco_user', 'reco_user', 'reco_user', 'reco_user',\n'reco_user', 'reco_user', 'reco_user', 'reco_user', 'reco_user', 'sim_user_1',\n'sim_user_1', 'sim_user_1', 'sim_user_1', 'sim_user_1', 'sim_user_1',\n'sim_user_1', 'sim_user_1', 'sim_user_1', 'sim_user_1', 'sim_user_1',\n'sim_user_2', 'sim_user_2', 'sim_user_2', 'sim_user_2', 'sim_user_2',\n'sim_user_2', 'sim_user_2', 'sim_user_2', 'sim_user_2', 'sim_user_2',\n'nsim_user_1', 'nsim_user_1', 'nsim_user_1', 'nsim_user_1', 'nsim_user_1',\n'nsim_user_1', 'nsim_user_1', 'nsim_user_1', 'nsim_user_1', 'nsim_user_1'],\n'categories': [['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Burgers', 'American (Traditional)', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants'],\n['Italian', 'Pizza', 'Restaurants']],\n'city': ['Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas',\n'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas',\n'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas',\n'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas',\n'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas',\n'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas',\n'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas',\n'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas', 'Las Vegas'],\n'latitude': [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,\n10, 10, 10, 10, 10, 10, 10, 10, 10, 10,\n12, 12, 12, 12, 12, 12, 12, 12, 12, 12,\n6, 6, 6, 6, 6, 6, 6, 6, 6, 6],\n'longitude': [7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 15,\n7, 9, 11, 13, 15, 17, 19, 21, 23, 25,\n7, 9, 11, 13, 15, 17, 19, 21, 23, 25,\n7, 9, 11, 13, 15, 17, 19, 21, 23, 25]\n})"}, {'role': 'assistant', 'content': 'load_data'}]