[{'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:yes_no = {\n"Yes": True,\n"No": False\n}\nfor col in ["Have you seen any of the 6 films in the Star Wars franchise?", "Do you consider yourself to be a fan of the Star Wars film franchise?" ]:\nstar_wars[col] = star_wars[col].map(yes_no)'}, {'role': 'assistant', 'content': 'data_preprocessing'}]