[{'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:def pretty_print_review_and_label(i):\nprint(labels[i] + "\\t:\\t" + reviews[i][:80] + "...")\ng = open(\'reviews.txt\',\'r\') # What we know!\nreviews = list(map(lambda x:x[:-1],g.readlines()))\ng.close()\ng = open(\'labels.txt\',\'r\') # What we WANT to know!\nlabels = list(map(lambda x:x[:-1].upper(),g.readlines()))\ng.close()'}, {'role': 'assistant', 'content': 'load_data'}]