Question: a cell that has a nucleus is called
[{'answer': 'eukaryotic cells', 'provenance': [{'wikipedia_id': '6235', 'title': 'Cell nucleus', 'start_paragraph_id': 1, 'start_character': 126, 'end_paragraph_id': 1, 'end_character': 142, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6235', 'title': 'Cell nucleus', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 307, 'bleu_score': 0.8013354426220931, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2052730948568769177}, 'section': 'Section::::Abstract.'}]}]