[{'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:mystr = \'This is a string, with words!\'\nwordList = re.sub("[^\\w]", " ",  mystr).split()\nprint(wordList)\nfrom difflib import SequenceMatcher as SM\ns1o=df1.loc[[22], \'Description\']\ns1=str(s1o)\ns2o=df1.loc[[99], \'Description\']\ns2=str(s2o)\nSM(None, s1, s2).ratio()'}, {'role': 'assistant', 'content': 'data_exploration'}]