[{'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:fig = plt.figure(figsize=(16, 12), dpi=300)\nax1 = fig.add_subplot(3, 1, 1)\nyears[0].plot(kind='bar', ax=ax1)\nax1.set_title('Zika virus publications')\nax2 = fig.add_subplot(3, 1, 2)\nyears[1].plot(kind='bar', ax=ax2)\nax2.set_title('Aedes aegypti publications')\nax3 = fig.add_subplot(3, 1, 3)\nax3.set_title('Usutu virus publications')\nyears[2].plot(kind='bar', ax=ax3)\nplt.savefig('timeline.svg')"}, {'role': 'assistant', 'content': 'data_exploration'}]