[{'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.barh(range(len(values)), values, align=\'center\')\nplt.yticks(range(len(labels)), labels)\nfig = plt.gcf()\nfig.set_size_inches(15, 10)\nplt.suptitle(\'Frequency of mails per domain\' , fontsize=20, fontweight=\'bold\')\nplt.ylabel("Domain names", fontsize=15)\nplt.xlabel("Number of emails", fontsize=15)\nplt.show()'}, {'role': 'assistant', 'content': 'data_exploration'}]