[{'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:allmales = {}\nallfemales = {}\ndata2_1 = pd.read_excel(url + "pinc08_2_1_1.xls", header = 9)\ndata2_4 = pd.read_excel(url + "pinc08_2_1_4.xls", header = 9)\ndata2_6 = pd.read_excel(url + "pinc08_2_1_6.xls", header = 9)\ndata2_8 = pd.read_excel(url + "pinc08_2_1_8.xls", header = 9)\ndata2_9 = pd.read_excel(url + "pinc08_2_1_9.xls", header = 9)\ndata3_1 = pd.read_excel(url + "pinc08_3_1_1.xls", header = 9)\ndata3_4 = pd.read_excel(url + "pinc08_3_1_4.xls", header = 9)\ndata3_6 = pd.read_excel(url + "pinc08_3_1_6.xls", header = 9)\ndata3_8 = pd.read_excel(url + "pinc08_3_1_8.xls", header = 9)\ndata3_9 = pd.read_excel(url + "pinc08_3_1_9.xls", header = 9)\nallmales = {"all":data2_1,\n"white":data2_4,\n"black":data2_6,\n"asian":data2_8,\n"hispanic":data2_9,\n}\nallfemales = {"all":data3_1,\n"white":data3_4,\n"black":data3_6,\n"asian":data3_8,\n"hispanic":data3_9,\n}'}, {'role': 'assistant', 'content': 'load_data'}]