Question: when does the nuclear membrane form around chromosomes
[{'answer': 'during telophase of mitosis', 'provenance': [{'wikipedia_id': '12840258', 'title': 'Nuclear envelope', 'start_paragraph_id': 23, 'start_character': 41, 'end_paragraph_id': 23, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Cell division.:Reformation.\n'}]}, {'provenance': [{'wikipedia_id': '12840258', 'title': 'Nuclear envelope', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 99, 'bleu_score': 0.8702397637697911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8092917680544830826}, 'section': 'Section::::Cell division.:Reformation.\n'}]}]