[{'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:features = [\'Elevation\', \'Aspect\', \'Slope\',\'Horizontal_Distance_To_Hydrology\', \'Vertical_Distance_To_Hydrology\',\n       \'Horizontal_Distance_To_Roadways\', \'Hillshade_9am\', \'Hillshade_Noon\', \'Hillshade_3pm\', \'Horizontal_Distance_To_Fire_Points\', "Cover_Type"]\nsns.heatmap(data=data_train[features].corr(), annot=True, linecolor="w", fmt=".1")\nplt.show()\''}, {'role': 'assistant', 'content': 'result_visualization'}]