Question: who came up with the theory of spontaneous generation
[{'answer': 'Aristotle', 'provenance': [{'wikipedia_id': '150135', 'title': 'Spontaneous generation', 'start_paragraph_id': 2, 'start_character': 69, 'end_paragraph_id': 2, 'end_character': 78, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]