[{'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:plt.figure(figsize=(16,8))\nplt.subplot(1,2,1)\ntrain_df.groupby(\'Date\')[\'ConfirmedCases\'].sum().plot(color=\'blue\')\nplt.ylabel(\'Number of Confirmed Cases\')\nplt.title(\'Confirmed Cases worldwide trend\')\n\nplt.subplot(1,2,2)\ntrain_df.groupby(\'Date\')[\'Fatalities\'].sum().plot(color=\'r\')\nplt.ylabel(\'Number of Fatalities\')\nplt.title("Fatalities worldwide trend")\n\nplt.tight_layout()\''}, {'role': 'assistant', 'content': 'result_visualization'}]