Question: what type of cell has no nucleus or membrane bound organelles
[{'answer': 'prokaryote', 'provenance': [{'wikipedia_id': '19172225', 'title': 'Prokaryote', 'start_paragraph_id': 1, 'start_character': 2, 'end_paragraph_id': 1, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19172225', 'title': 'Prokaryote', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 372, 'bleu_score': 0.905341140211783, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12036934610113423491}, 'section': 'Section::::Abstract.'}]}]