Question: when does a cell membrane pinch together to divide
[{'answer': 'the cleavage process', 'provenance': [{'wikipedia_id': '200182', 'title': 'Cytokinesis', 'start_paragraph_id': 17, 'start_character': 79, 'end_paragraph_id': 17, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Animal cell.:Actin-myosin ring assembly and contraction.\n'}]}, {'provenance': [{'wikipedia_id': '200182', 'title': 'Cytokinesis', 'start_paragraph_id': 17, 'start_character': 0, 'end_paragraph_id': 17, 'end_character': 2279, 'bleu_score': 0.977392069292293, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12661718348464008432}, 'section': 'Section::::Animal cell.:Actin-myosin ring assembly and contraction.\n'}]}]