[{'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:def Cleaner(x, y):\nreg = LinearRegression()\nreg.fit(x, y)\npredictions = reg.predict(x)\ncleaned_list = outlierCleaner(predictions, x, y)[1]\ncleaned_list =  np.reshape(np.array(cleaned_list), (len(cleaned_list), 1))\nreturn cleaned_list'}, {'role': 'assistant', 'content': 'modelling'}]